State Roles in Providing Affordable
Mass Transport Services for LowIncome Residents

17

Discussion Paper 2011 • 17
Robert Cervero
University of California, Berkeley

This document was produced as background for the 2011 International Transport Forum, on
25-27 May in Leipzig, Germany, on Transport for Society. The views expressed in this document
do not necessarily reflect those of the member countries of the International Transport Forum.

Further information about the International Transport Forum is available atwww.internationaltransportforum.org

State Roles in Providing Affordable
Mass Transport Services for
Low-Income Residents

Discussion Paper No. 2011-17

Robert Cervero
University of California, Berkeley, USA

May 2011

State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

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State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

TABLE OF CONTENTS

1. INTRODUCTION..................................................................................................................... 4
2. JUSTIFICATION FOR PUBLIC SUPPORT OF MASS TRANSPORT ...................................... 4
3. INEQUITIES IN MOBILITY ...................................................................................................... 5
4. COST OF INACCESSIBILITY ................................................................................................. 7
5. PUBLIC TRANSPORT, SUBSIDIES, AND FARES ................................................................. 8
6. MODERATING TRANSIT OPERATING SUBSIDIES ............................................................ 11
7. INFORMAL TRANSPORT OPERATORS.............................................................................. 13
8. METROVIVIENDA ................................................................................................................ 14
9. EVALUATION: TOWARD A MORE BALANCED FRAMEWORK .......................................... 16
10. ALTERNATIVE EVALUATION METRIC .............................................................................. 17
11. CLOSE ................................................................................................................................ 19
REFERENCES .......................................................................................................................... 20

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State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

1. INTRODUCTION

Governments support urban mass transport services worldwide under the guise of helping
the poor and improving the environment. With more and more governments cash-strapped andfacing budgetary shortfalls in other vital areas, the fiscal burdens of underwriting public transport
have prompted some observers to question such rationales.
This paper reviews the role of states in ensuring affordable mass transport services areavailable to low-income residents. The heavy financial burdens that the poor sometime face inmoving about the city and possible ways of reducing these impacts are discussed. Examples of
keeping transit fares affordable while also ensuring reasonably cost-effective mass transport
services are cited. Because public policy choices that shape mass transport services are
informed by technical evaluations, this paper also examines conventional practices regarding
how transport proposals are reviewed and assessed. It argues that moving toward a frameworkthat focuses on enhancing accessibility rather than principally mobility would better represent thelong-term impacts of capital investments while also promoting the interests of mobilitydisadvantaged populations.

2. JUSTIFICATION FOR PUBLIC SUPPORT OF MASS TRANSPORT

Justification for government subsidizing mass transport services are rooted in both economic
and social arguments (Peskin, 1973; Cervero, 1983). The principal economic justifications arethat mass transport produces positive spillovers and is the most efficient user of road space andenergy resources. More than any motorized mode, buses and trains maximize passenger
throughputs along travel corridors. And they do so with the least amount of pollution emissions
per passenger-km traveled. Such benefits, however, only accrue if mass transit users are former
single-occupant motorists. If transit riders formerly did not take the trip or are former car
passengers or transit users (e.g., they switched from bus transit to rail), economic andenvironmental benefits will be minimal. Other economic justifications for subsidies include: (1) acountervailing subsidy to offset the historical under-pricing of transit‘s chief competitor, theprivate car (e.g., failure of most motorists to internalize external costs, like air pollution andcongestion during peak periods, or to pay for on-street parking); (2) efficient pricing – e.g.,
efficiency principles call for setting the price at the marginal costs of new trips, which at low-tomodest demand levels where economies of scale exist will mean prices fall below average costs,
thereby incurring a deficit (Oi, 1973; Hilton, 1975; Cervero, 1983).
As important are the social justifications for government sponsorship of mass transit
services. Public transport is a form of social investment, providing needy and mobilitydisadvantaged residents with vital access to jobs, medical care, schools, retail outlets, and otheressential destinations. Use of the term ―investment‖, versus ―subsidy‖, is important. Public
expenditure of financial resources on roads, wherein studies suggest motorists fail to cover thefull costs of building and maintaining them (Murphy and Delucchi, 1998), is commonly referred toas an ―investment‖. Why then are public outlays to mass transport not similarly considered aninvestment? Devoting a portion of the public largesse to transit is a form of investment in humancapital, not unlike road investments are a form of building physical capital.

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For many urbanites, especially in the developing world, the availability of good, reliable, andaffordable bus and rail services can be the difference between being integrated into theeconomic and social life of a city or not. The share of marginalized city-dwellers with poor accessto essential facilities and services continues to increase worldwide (Kaltheier, 2002). Isolationfrom job opportunities and health care is particularly acute among those living on the urban
periphery. Even in the world‘s most car-dependent country, the United States, over a third of the
population is transit-dependent -- i.e., too old, young, poor, disabled, or infirmed to drive a car. In
very low-income countries, the share of urban-dwellers who are captive is larger – as high as 80
percent in countries like Bangladesh. To the poor and powerless, low-cost and affordable public
transport becomes an essential lifeline to participation in society‘s economic, social, cultural, andreligious offerings.
To some, public support of mass transport for the poor is a moral issue. Such arguments arerooted in the notion that mobility is a basic human need, not unlike clean, potable water or
sanitation. An even stronger stance is that availability of affordable public transport is anentitlement, just as safety and protection from criminal elements and potential harm-doers.
Transit provides minimum mobility services to the most needy who otherwise could not afford topay for market-based transport services. Fixed-route buses and rail services provide connections
to those whom the market (e.g., private taxis, informal transit operators) would ignore. Since theindustrialization and modernization of cities, spread-out growth patterns have created trip origins
and destinations that are well beyond walking distance for many. Even if a bicycle can beafforded, the lack of cycle-ways combined with the safety risks from chaotic and poorly regulated
traffic make the poor dependent on buses and trains to move about the city. The need to carrygroceries, goods, and sometimes toddlers, especially among women, make walking and cycling
impractical. Thus the need for mechanized forms of mobility becomes absolutely essential – abasic right for all. For those too poor, old, young, or infirmed to own or drive a car, publicly
sponsored buses and trains are all that is left.
While moral and social equity arguments in support of transit subsidies can be found in theacademic literature, explicit commitments to such purposes by public transit agencies are not that
common. A recent survey of 50 transit agencies in the U.S., for instance, found that just four (8percent) explicitly identified serving the needs of the poor or mobility-impaired as agency goals
and objectives (Taylor and Breiland, 2011). By contrast, 22 percent identified the fostering of
economic development as a goal for supporting transit and over a third embraced transit for its
potential contributions to traffic congestion relief.

3. INEQUITIES IN MOBILITY

Where governments are too poor or unable to underwrite public transport services, one often
finds large, sometimes exorbitant, shares of travelers‘ incomes going to private, often informal,paratransit operators. When public transport services are absent, private and sometimes illegal
service-providers – in the form of micro-buses, motorcycle-taxis, and motorized rickshaws – willoften fill the mobility gap (Cervero, 2000). Setting prices at whatever the market will bear, private
paratransit operators invariably charge more per kilometre traveled than publicly supported ones.
In the poor informal housing settlements on the outskirts of Mexico City, outside the service
jurisdiction of the city‘s 201-km metro, barrio residents sometimes must take 2 to 3 separate
collectivos to reach a metro terminal (which provides low-cost connections to the core city)(Cervero, 1998). This form of informality – dwellers of informal housing using informal para-transit
to reach transient, informal job opportunities in the core city (e.g., street hawkers) – can consume
25% or more of daily wages (Vasconcellos, 2001; Kaltheier, 2002). Time costs can also be
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State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

exorbitant: 20 percent of workers in Mexico City spend more than 3 hours traveling to and fromwork each day (World Bank, 2009). Even higher shares of the poor spend more than 3 hours
daily traveling in Bogotá (Kaltheier, 2002). Studies in Nairobi, Kenya estimate that non-integrated
fares charged by private transit operators can consume anywhere from 14% to 30% of daily
wages (Gwilliam, 2002; Cervero, 2000). Taking a series of informal minibuses and motorized
tricycles to and from work can cost 20% to 25% of daily wages in rapidly growing cities like Delhi,
Buenos Aires, and Manila and is estimated to be as high as 30% in the suburbs of Dar Es
Salaam (Ferrarazzo and Arauz, 2000; Kaltheier, 2002; Cervero, 2000).
The disproportionate financial burden felt by the poor in reaching job opportunities is not
limited to developing countries. Even in the U.S., the working poor spend twice the share of
earnings – 6.1 percent versus 3.8 for the non-poor – reaching their jobs (Roberto, 2008). Adding
the cost of reaching non-work destinations like schools, shopping, and health care can raise thisfigure to over 20 percent of wages.
What is a reasonable share of a household‘s income that should go to transport? In the
United States, around 15% of annual income goes to metropolitan transport – in the form of car
ownership, maintenance, and fuelling as well as public transport expenditures and the like.
However part of this expenditure goes toward an asset, namely the private car, that has re-salevalue and in a car-oriented country like the U.S. becomes a form of ―subscription fee‖ to fully
participate in American society. In poor countries of the world, fare payments are lost income inthe sense there is no direct asset accumulation from the expenditure. While there is no allencompassing benchmark or norm set for appropriate levels of transport outlays, one rule-ofthumb has been advanced by Armstrong-Wright (1986). The Armstrong-Wright maxim holds thatno more than 10% of households should spend more than 15% of household income on journeys
to work. Otherwise, public transport fares are considered ―unfair‖ and discriminatory. According to
the Cities on the Move report of the World Bank, this is a ―reasonable rule for determining thelevel of a politically administered price‖ (Gwilliam, 2002, p. 35).
It should be recognized that transport and housing are imbedded goods. In poor and wealthysocieties alike, they are often traded off – low-cost housing in the suburbs and outskirts arematched by high-cost transportation or vice-versa. Less accessible locations command lower
land prices per m2 however this is offset by higher outlays for reaching jobs, schools, and thelike. A U.S. study found lower income households were less able to trade-off cheaper housing for
longer commutes, ostensibly because of factors that restrict residential mobility, such as
exclusionary zoning (Cervero et al., 2006). For every 10 percent in commute time among U.S.
households that moved between 1995 and 2000, those in the highest one-third of income
brackets could lower housing costs, on average, by 9 percent compared to a lowering of just 3.5
percent in the lowest trintile income bracket (Figure 1).
Figure 1. Percentage Decrease in Housing Expenditures for a 10 Percent Increasein Commute Times Among U.S. Households inSeven Metropolitan Areas, by Income Category, 2000

Highest Third
Middle Third
Lowest Third

8.9%

5.4%
3.5%
0

5

10

Source: R. Cervero et al. 2006.
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State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

In the developing world, relationships between transport and housing outlays are much thesame. For the very poor, whatever savings that accrue from illegally squatting on land and living
in squalor (e.g., lack of piped water or indoor plumbing) often evaporate from the high expenses
incurred in reaching income-earning opportunities in the city as well as essential medical,
educational, and retail destinations. The co-dependent nature of housing and transport
expenditures is a core notion of Bogotá Colombia‘s Metrovevienda program, discussed later inthis paper.
Few countries have sought to set a threshold on worker expenditures for commuting. One
that has is Brazil, under the Vale Transport program which sets the maximum amount of earnings
that workers can devote to commuting at 7%. Any share above this amount must be paid by theemployer. This program, however, only applies to those with jobs in the formal economy. In 2002,
an estimated 55 percent of Brazil‘s workers had jobs in the informal economy (Capp et al., 2005),
thus the majority were unaffected by Vale Transport.

4. COST OF INACCESSIBILITY

The costs of poor access are cause for concern. Inaccessibility is isolating. It shrinks one‘s
job search area and information network. It restricts laborsheds, tradesheds, and communication
channels. An extensive literature in the U.S. has shown a strong link between social andeconomic needs of the urban poor and their residential locations (Kain and Persky, 1969; Wilson,
1996; Ihlanfeldt, 1999). Poor job accessibility has also been associated with poor economic
outcomes in the U.S., including joblessness, low wages, and restricted upward mobility (Raphael,
1998; Thakuriah and Metaxatos, 2000; Cervero et al. 2002).
In the developing world, the burdens of physical isolation are even more stark anddebilitating. When 700,000 squatters were resettled on periphery of Delhi, female employment
fell 27%; travel time increased 3-fold (Badami et al., 2004). Other costs associated with lowlevels of access among the urban poor in Delhi include: high rates of traffic fatalities (Thakuriah,2009); high exposure to air pollution (Badami et al., 2004); and slum residences near temporary
or seasonal employment opportunities (Thakuriah, 2009).
Most of the empirical evidence on the impacts of improved job access on employmentoutcomes comes from the United States. There, increased job access has been shown toincrease the probability of welfare recipients and unemployed adults finding gainful employment
and staying off public assistance (Sandoval et al., 2010). One study found that improved accessto jobs by public transit increased the likelihood of eligible low-skilled workers in San Francisco
and Los Angeles being employed and working 30 hours or more per week (Kawabata, 2003).
Relationships were strongest for individuals who had no access to private automobiles. Other
studies of California, however, reveal that car ownership and road access were stronger
predictors of welfare-to-work transitions than access via public transit (Cervero et al., 2002).
There is also an important longitudinal dimension to access and economic well-being.
Recent research suggests providing good mobility and access at formative years of one‘s life canhave longer term economic pay-offs. A life-cycle analysis of U.S. consumers showed goodtransportation conditions during adolescence and young adulthood lasts as individuals move into
adulthood (Thakuriah and Tang, 2008). The authors estimated that those facing transportation
problems suffered an annual social welfare loss of around $2,500 compared to those without
mobility problems. They conclude that ―governmental subsidies should target transportation
services for carless individuals in disadvantaged neighborhoods, because of the long-term
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State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

earnings potential and the long-term societal benefit that accrues from these services. These
economic benefits will also enable these individuals without the means for personal mobility to
avoid dependence on public assistance, unemployment benefits and other forms ofgovernmental assistance in the long run.‖

5. PUBLIC TRANSPORT, SUBSIDIES, AND FARES

Notwithstanding social arguments, the public outlays needed to underwrite the costs ofbuses and rail services can be financially burdensome. UITP data for 42 global cities suggeststhat annual transit operating subsidies in 2001 were appreciable and in some instances
astonishingly high. Across these 42 cities, the average non-farebox revenue per capita – which
includes government subsidies but also other income such as from advertising, land leases, joint
development, etc. – was estimated at 1.56 billion Euros, with a sizable standard deviation of 2.4
billion Euros. On a per capita basis, this worked out to annual non-farebox income (including
operating subsidies) that ranged from a low of 47 Euros per resident in Moscow to nearly 1,000
Euros per resident in Chicago, London, Glasgow, Manchester, and Oslo (Figure 2). and as theautomobile continues to gain ascendancy, grabbing larger shares of the travel market, transit
subsidies show no sign of abating. In the U.S., inflation-adjusted subsidies of public transit perurban resident rose 19 percent between 1998 and 2008 (Taylor and Breiland, 2011).
As a percentage of total operating costs, user fares constituted on average around half the total
among global cities. As national incomes and motorization rates rise and public transport service
options become more formalized, the amount of income that comes from non-farebox sources –including government subsidies -- also increases. On a per capita basis, Figure 3 shows a fairly
strong positive relationship between non-farebox revenue and GDP. Non-fare revenues per rider
similarly tended to rise with per capita income (Figure 4).
Figure 2. Annual Transit Non-Fare Revenues (including Operating Subsidies) per Capita
Among 42 Global Cities, Cumulative Distribution in 2001, in Euros

Source: UITP Mobility in Cities Database, 2006
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State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

Figure 3. Non-Fare Revenues (including Operating Subsidies) per Capita by GDP per
Capita (Euros) Among 42 Global Cities, 2001

Source: UITP Mobility in Cities Database, 2006.

Figure 4. Non-Fare Revenues (including Operating Subsidies) per Rider by GDP per Capita(Euros) Among 42 Global Cities, 2001

Source: UITP Mobility in Cities Database, 2006.

Globally, there is little relationship between farebox recovery rates and per capita income, as
revealed by Figure 5. As GDP increases, the ability to recoup costs through fare revenue tends
to weakly decline, thus prompting governments to underwrite some of the losses. Predictably,
achieving higher farebox recovery rates does not translate into ridership productivity. Figure 6
reveals that among 48 global cities, riders per vehicle km of service tended to fall as the share ofcosts recovered by fares increased – reflecting a negative transit fare elasticity.
Lastly, global statistics reveal that public outlays for transit versus its chief competitor –highways – generally decline as per capita income rises (Figure 7). Clearly this reflects the
positive association of income and automobile ownership rates (or negative association ofincome and transit modal splits). As cities get wealthier, the share of the transportation sector‘slargesse that goes to cars gets higher while the share that goes to transit shrinks. This no doubt
reflects the diminution of social equity in general and transit affordability, more specifically, as an
explicit goal of public transport services.
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State Roles in Providing Affordable Mass Transport Services for Low-Income Residents

Figure 5. Farebox Recovery Rates (Fare Revenues/Operating Costs) by GDP per Capita(Euros) Among 42 Global Cities, 2001

Source: UITP Mobility in Cities Database, 2006.

Figure 6. Ridership Productivity and Farebox Recovery Rates Among 45 Global Cities, 2001

Source: UITP Mobility in Cities Database, 2006.

The most detailed statistics on government financial support of public transport come fromhigher income countries where transit tends to capture a relatively low share of total trips. In the
United states, financial assistance from local, state, and federal governments to support transit
operations skyrocketed from $7.6 billion in 1991 to $22.8 billion in 2009, an average annual
increase of $844 million (Federal Transit Administration, 2011). During the same period, theshare of operating costs covered by fares fell from 42.4 percent to 34 percent. Public subsidies to
U.S. transit users have reached as high as $25 for specialized door-to-door services for theelderly, similar to what many would pay for an exclusive-ride taxi. It cannot be ignored that such
public expenditures have opportunity costs – money could go to other pressing needs like healthcare, education, and nutrition. Some argue other mechanisms to redistributing incomes, such as
negative income taxes, are preferable to sector-specific subsidies because they have lessdistortive effects (Peskin, 1973). Subsidies, moreover, are not always progressive. Studies show
they can induce more and longer trips, especially among the non-poor. A study in Salvador,
Brazil showed that the lowest income groups made, on average, one trip per person per daycompared with 3 trips per day for the highest income groups (Thompson, 1993).

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Figure 7. GDP per Capita and Annual Public Transport Investment
Expenditure/Annual Road Network Investment, Operation and
Maintenance Expenditure Among 30 Global Cities, 2001

Source: UITP Mobility in Cities Database, 2006.

Public investments in costly metrorail systems have come under particular fire not only for
their price tags but also redistributive effects. Metrorail investments are often regressive,
burdening tax-payers while mainly benefiting middle-class workers with white-collar office jobs aswell as central-city businesses, retailers, and land-owners. Sometimes bus services, which areoften patronized proportionally more by low-income individuals, have to be curtailed in order tocover the costs of pricey metrorail investments. The differences in the cost-effectiveness of thesetransit options can be striking: in Colombia, Bogotá‘s Transmilenio Bus Rapid Transit (BRT)system carries more than three times as many riders as Medellin‘s rail system which cost fivetimes more to build (Cervero, 2003). In the U.S., inflation-adjusted subsidies to rail transit perurban resident have increased dramatically over the past decade while those to bus transit haveactually fallen (Taylor and Breiland, 2011).

6. MODERATING TRANSIT OPERATING SUBSIDIESThe fiscal burden of underwriting transit operations can be relieved through containing costs,
increasing incomes, or some combination thereof. Cost containment measures are generally themost expeditious way to reduce operating deficits and subsidies, though they can be politicallycontentious, particularly when cuts fall on the backs of labor, which in the case of formal
operations account for three-quarters or more of all operating expenses.
A cost-containment strategy that has perhaps garnered the most attention in recent times ismanaged competition through competitive tendering. Experiences show that competition imposesa market discipline, prompting contractors to contain costs and drive hard bargains at the labor
negotiations table. Experience in western Europe and the U.S. reveal that competitive tendering
can lower transit operating costs by 40% (Gwilliam, 2002). Competitive tendering, however,works well only under the right conditions: notably, contestability (i.e., knowledge that firms risk
losing bids if costs are too high) and the institutional capacity and political commitment toproperly oversee and manage contracts. Moreover, care must be taken to ensure that private
operators do not abandon socially desirable services. If left unchecked, successful bidders will
eliminate the least profitable transit services in the drive to maximize profits. This can mean the
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axing of bus services in the urban periphery (where the poor of the developing world often dwell)as well as during the off-peak and on weekends (times when low-skilled, low-salaried workers
with odd-hour, split-shift jobs often need to get to and from work).
Better revenue management can also reduce transit subsidies. Fares, for instance, can be
restricted to a certain class of users. This is often on the basis of age, with fare concessions
typically assigned to the elderly and school-age children. In practice, this can create horizontal
inequities, with some lower-income riders cross-subsidizing other lower-income riders, and atworst a regressive form of cross-subsidies, with the poor subsidizing the rich. Not all seniorcitizens nor all school children are from low income households. Such horizontal inequities canmean poor middle-age transit riders are helping to cover the fares of wealthy elderly riders. The
global trend toward societal aging is likely to exacerbate such inequities.
Gomez-Ibanez (1975) has argued for a somewhat coarser targeting of subsidies. Because
the poor constitute a larger share of riders in smaller metropolitan areas and for shorter-distance,
off-peak services in bigger ones, he suggests these kinds of services might be more heavily
subsidized. Service-based targeting of subsidies does not eliminate internal cross-subsidization,
however, and in the case of the U.S., will not bring benefits to the larger number of poor people
who do not regularly use mass transportation. An alternative is geographic targeting. In Lima,
Peru, reduced public transit tickets are sold at kiosks in urban districts with high concentrations ofpoverty. Private paratransit operators are paid the difference between regular fares anddiscounted tickets, plus an administration fee.
All subsidies are income transfers thus an argument can be made that ability-to-pay shouldbe the only grounds for underwriting transit‘s costs and thus transferring wealth from non-users(e.g., taxpayers in general) and non-eligible users (e.g., adult, non-concession-fare riders) totargeted populations (e.g., seniors with fare subsidies). For this reason, the financial burden offare reductions should shift from transit operators and governments in general to specific socialand human services agencies responsible for the welfare of specific client groups. Shifting
subsidies from general public treasures to special-purpose groups can promote horizontal equity.
Another revenue-based policy option would be to focus on user-side versus provider-side
subsidies. This could be in the form of vouchers issued by social service agencies to their clients –e.g., chits to seniors and the unemployed. Such vouchers work best in a fairly open marketplacethat enriches transit service offerings and increases the number of price points -- provided, ofcourse, that operators meet safety, fitness, and operating standards. Another rationale for userside subsidies is they can reduce waste and inefficiencies that are often encountered when one
group (e.g., taxpayers) cover some of the costs of others (e.g., transit riders). Experiences shows
many provider-side subsidies get leaked away in the form of higher worker compensation andbenefit packages without commensurate improvements in transit services or productivity gains. In
the U.K. and the U.S., studies show that as much as one-half of transit operating subsidies areleaked away (Oi, 1973; Cervero, 1984; Pickrell, 1985; Gwilliam, 2002).
A focus on keeping fares low and thus affordable to the poor through public subsidies canbackfire in other ways. A vast literature reveals that transit riders tend to be more service-thanprice- sensitive, and that this sometimes holds even among low income travelers. In the U.S., theelasticity between transit service frequency and ridership is roughly twice as large (in absoluteterms) as between average fare and ridership (Cervero, 1990). And as a force toward inducing
modal shifts, relationships are virtually nil – the cross-elasticities between transit fares and car
travel has been shown to be nearly zero in the United States (Moses and Williamson, 1963;
Cervero, 1990). Besides subsidies shielding operators from rising costs and rewarding
inefficiencies, reduced income means that transit services are often reduced to the lowest
common denominator – i.e., routine, fixed route, and relatively infrequent services. This prompts
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most middle-income, choice consumers with a car available to drive, thus reducing theenvironmental benefits of transit investments. Evidence from social surveys of public transport
users in Uzbekistan, the Kyrgyz Republic, and several Brazilian cities suggest that the poor may
be willing to pay more for better services offered by informal carriers (Gwilliam, 2002). In Cairo,
many of the poor take higher priced Metro over conventional fixed-route buses because of higher
quality services.
Another fare-based option with potential high pay-off is to modify fare systems. This can bein the form of more differentiated fares that reflect the higher marginal costs of peak-period andlonger distance services. Washington D.C. metro levies peak-period surcharges and many bus
operators have distanced-based fares. Technologies like smart cards enable more efficientpricing. In Seoul, GPS and smart-card technologies are used to levy a unified distance-based
fare for those making integrated bus and rail trips. GPS tracks the precise location where apassenger boards and leaves a bus, assigning a ―tentative fare‖, and at the end of the connectedsubway journey, a final and precise distance-based fare is levied against the user‘s stored-value
smart card.
Efficient transit pricing is more likely to take root when a receptive institutional environment
exists that creates integrated and unified tariff systems and that rewards cost-effectiveness. An
exemplary model is Germany‘s Verkehrsverbund, or transportation federation (Pucher and Kurth,
1996). As practiced in city-regions like Munich and Hamburg, an executive board is formed to set
regional service and fare policies, in addition to approving budgets for capital investments andoperating assistance. A particularly important role of the board is to allocate sufficient operating
assistance across operators to ensure that efficient and socially equitable fares can be charged
while also rewarding operators who are productive. Day-to-day matters – e.g., making suretimetables of trains and buses are synchronized, setting boundaries for zonal tariffs – are left to a
management board, whose members are mainly bosses and department heads of rail and bus
companies that deliver services. The coordination of services and integration of tariffs means ahigh-quality regional network of transit services is available, one that allows seamless transfers
and that minimizes fare penalties from switching between transit modes or routes. High service
quality translates into high ridership and thus high cost recovery rates.
Many rail transit agencies are also in a position to generate revenues through value capture.
No city has more successfully recaptured the increase in land values created by the opening of
new metrorail stations than Hong Kong. Under Hong Kong MTR‘s R+P (Rail+Property) program,
MTR sells the long-term development rights of building atop subway stations to private real-estatecompanies. Between 2001 and 2005, 62 percent of MTR‘s income came from property-related
activities, more than twice as much as generated by farebox revenues. In addition to helping cover
the costs of railway investments and operations, such schemes promote more sustainable patternsof urbanism, like transit-oriented development (Cervero and Murakami, 2009).

7. INFORMAL TRANSPORT OPERATORS

Still another way to relieve governments of the financial burdens of public transportation is topartially or fully deregulate the urban transport sector and in the case of the poorest countries,
largely hand over the provision of collective-ride mobility to informal operators. In the developingworld, informal services remain the chief option available for collective-ride transport (Cervero
and Golub, 2007). In much of Africa and in smaller Asian cities where municipal budgets are
stretched thin and technical capacities for planning, administration and regulation are insufficient,almost by default informal transport are the only dependable services available. On the one
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hand, these ‗small vehicle‘ modes provide important benefits, particularly to the poor, such as ondemand access to medical clinics, jobs for low-skilled in-migrants, and service coverage in areas
devoid of formal transit. On the other hand, they contribute to traffic congestion, air and noise
pollution, and traffic accidents.
Besides being more market responsive and economically productive, informal paratransit
operators often do a better job of containing costs than their public-sector counterparts. This isoften due to the profit-maximizing motives of owner-operators who avoid the kinds of overhead
and administrative costs found with larger organizations. Often the same person who drives aminibus maintains it as well. In addition, lack of union representation tempers wage escalation.
Moreover, most informal operators belong to route associations which, among other things, help
keep costs down through group purchase of liability insurance, spare parts, and fuels. Even
where public financial support is involved, private operators are more efficient. Karlaftis andSinha (1997) found that privately operated systems have been better able to use public subsidies
to improve performance, in contrast to experiences with subsidies to heavily unionized public
transit agencies.
A recent study examined the impacts of eleven different policies aimed at improving thequality and cost of collective-ride services available to the poor of Rio de Janeiro (Cervero andGolub, 2007). Among the policies investigated included upgrading bus and train services,
regulating and legalizing private van services (that are currently informal), investing in busway
infrastructure, and competitive concessions of bus and van services. Competitive tendering wasestimated to benefit the poor the most by lowering fares but also creating higher quality services,such as a higher likelihood of getting a seat. Other initiatives were less beneficial to low-income
residents because they carried higher costs and thus higher user fares.

8. METROVIVIENDA

Bogotá, the Andean capital of Colombia and home to more than 7 million inhabitants, iswidely recognized for having mounted one of the most sustainable urban transport programs
anywhere. In 2000, the city introduced a high-speed, high-capacity bus system, called
TransMilenio, building upon Curitiba, Brazil‘s much-celebrated success with dedicated busways.
Bogotá‘s leaders went one step further, giving investment priority to pedestrians, followed bybicycle facilities, then public transit, and lastly cars (i.e., inversely to travel speeds).
As in many Latin American cities, Bogotá is dotted with informal housing clusters, somewhich snake up the hillsides to hard-to-reach locations. Figure 8 shows the location of informal
settlements which in 2001 housed 22% of the city‘s population on 18% of its land area (6500
hectares in total). As of 2004, 375,000 slum-residences had been illegally built in 1,433 different―clandestinos‖, or clandestine neighborhoods (Cervero, 2005B). Relatively few public services(sewerage lines, piped water, paved roads) reach these areas. Because of the peripheral
locations and limited availability of public transport (partly because of steep terrains and ruttedroads), the average daily commute of ―clandestine‖ residents was 2 ½ hours in 2001. Many
unskilled workers seeking day jobs are forced to pay multiple fares for informal paratransit
connections to the city, consuming as much as 15% of daily wages.
In response to these acute problems, an innovative land-banking/poverty-alleviation
program, called Metrovivienda, was introduced in 1999. Under Metrovivienda, transportation andhousing are treated as bundled goods. The city acquires plots when they are in open agriculturaluses at relatively cheap prices and proceeds to plan and title the land and provide public utilities,
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roads and open space. Property is sold to developers at higher prices to help cover infrastructure
costs with the proviso that average prices be kept under US$8,500 per unit and are affordable tofamilies with incomes of US$200 per month. Because families in the lowest income strata areunable to afford these prices, households that had moved into Metrovivienda units have comefrom upper-lower and lower-middle income groups.
To date, four Metrovivienda sites have been created near one of Transmilenio‘s terminuses,
each between 100 and 120 hectares in size and housing some 8,000 families (Figure 9). At build
out, the program aims to construct 440,000 new housing units. Putting housing near stations
helps the city‘s poor by ―killing two birds with one stone‖ – i.e., providing improved housing andpublic transport services. Those moving from peripheral illegal settlements into transit-served
Metrovevienda projects enjoy both ―sites and serviced‖ housing and material improvements inaccess to major economic centers in the city. It is estimated that job-accessibility levels via transit
within one-hour travel times increased by a factor of three for those moving from illegal housing
to legal Metrovevienda projects (Cervero, 2005A).
Figure 8. Informal Housing Settlements (Clandestinos) on the Periphery of Bogotá.

An important aspect of the Metrovivienda program is the acquisition of land well in advanceof Transmilenio services. Because Metrovivienda officials serve on the Board of Transmilenio,
they are well aware of strategic plans and timelines for extending dedicated busway services.
This has enabled the organization to acquire land before prices are inflated by the arrival ofTransmilenio. A recent study found residing close to Transmilenio stations increased monthly
rents: on average, housing prices fell by 6.8 percent to 9.3 percent for every 5 minutes increasein walking time to a station (Rodriquez and Targa, 2004) and these premiums increased in sizeas the busway system expanded (Rodriquez and Mojica, 2008). Thus, acquiring land in advancehas enabled Metrovivienda to keep prices affordable for households relocated from peripheral―clandestine‖ housing projects. Transmilenio is also more affordable. When living in the hillsides,
most residents used two different public transit services (a feeder and a mainline), paying on
average 3200 pesos a day (US$1.39) to leave and return home. With Transmilenio, feeder buses
are free, resulting in an average of 1800 pesos (US$0.78) in daily travel costs.

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Figure 9. Bogota’s Metrovivienda Program:
Bundling Low-Cost Housing and Public Transport

Metrovivienda is an exemplar of accessibility-based planning in a developing country. By
coupling affordable housing with affordable transport, Bogotá leaders have improved access tojobs, shops, and services while reducing the joint costs of what often consumes two-thirds of thepoor‘s income: housing and transport. Whether Metrovivienda makes a serious dent in the city‘s
housing shortages and traffic woes remains to be seen, however most observers agree that it isa significant and positive step forward.

9. EVALUATION: TOWARD A MORE BALANCED FRAMEWORKOne factor that likely impedes the emergence of transportation services catered to themobility needs of the poor and that as a consequence likely keeps prices higher than they need
be is how transportation projects are evaluated. Rarely, if ever, are accessibility and affordability
explicit and quantified criteria used in evaluating urban transportation projects. Rather, travel-timesavings are the principal economic benefit assigned to urban transport projects. According toMackie et al. (2001), travel-time savings capture 80% of the quantified benefits for transportation
Cost-Benefit Analyses (CBA) in the United Kingdom. In a recent evaluation of proposed bus-way
improvements in Lima, Peru, travel-time savings represented 75% of the project‘s total estimatedbenefits (World Bank, Latin American and the Caribbean Region, 2003).
History shows that major improvements to roads and public transit do not reduce the amountof time per day urbanites devote to getting around a city. More often, they increase the number
and length of trips (Metz, 2008). Despite dramatic gains in the average speed of travel conferred
by modern technology over the past century — faster cars, super-highways, limitedaccess/grade-separated freeways — the amount of time urbanites spend traveling has remainedlargely unchanged over many decades, if not centuries. Scholars call this constancy in traveltime expenditures ―time budgets‖ (Zahavi and Talvitie, 1980, Tanner, 1981). As transportsystems become speedier and cheaper, urban dwellers take advantage of these improvementsby traveling more and over greater distances as opposed to saving time or money. If conditions
allow, users prefer to broaden their range of options rather than reduce general costs of travel.
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Thus, the benefit of a new road or bus-way gets expressed more in terms of expansion of tradesheds, labor-sheds, market-sheds, and social networks than spending less on physicalmovement. Stated another way, the chief benefit is increased ―accessibility‖ — i.e., the ability to
get to destinations and activities people want to reach — not less total time traveling. It follows
that any assessment of prospective transport investment projects should give at least as muchattention to estimated impacts on accessibility as to travel-time savings.
Reliance on travel-time metrics to gauge benefits also raises equity concerns. Travel-timesavings accrue mainly to motorists, yet many poor in the developing world do not own a car or
drive. Their values of time might also be substantially less than those of the middle andprofessional classes. For them, enhanced access opportunities might be a bigger benefit – andcontribute more to poverty alleviation — than reduced travel-time expenditures. The ability towiden the territorial sphere for job searching, save on food purchases, reach medical clinics fairly
quickly, and seek out better educational opportunities is likely to benefit the poor more thansaving a few minutes of time moving along an expanded roadway.
Experiences also show that the poor are willing to trade-off travel-time delays for lower
transit fares, parking rates, or fuel prices — i.e., they tend to be more price-sensitive and lesstime-sensitive than the non-poor. More popular uprisings have been sparked by increases in fuelprices and bus fares than by delays in travel times. For such reasons, the use of travel-timesavings as a singular metric of benefits is all the more questionable from an equity point-of-view.

10. ALTERNATIVE EVALUATION METRIC

Accessibility needs to be elevated in the toolkit of metrics used to evaluate transportation
proposals. Accessibility is a product of mobility and proximity, enhanced by either increasing the
speed of getting between point A and point B (mobility), or by bringing points A and B closer
together (proximity), or some combination thereof. Since accessibility is a product of both travel
time and the geographic location of urban activities, it captures not only the temporal but also
spatial dimension of travel. Thus accessibility measures give legitimacy to land-use initiatives andurban management tools in addition to supply-side, mobility-enhancing measures.
Accessibility is typically handled qualitatively in economic appraisals of transportation
proposals. The appraisal of a proposed BRT investment in Lagos, Nigeria, for example, offered asimple qualitative statement in support of the project on social grounds, noting ―the proposed
project would benefit women, the elderly, and the physically challenged by responding to theirneeds and providing them with better access to basic social services (health, school,administration), jobs, and markets, at a lower cost than currently available‖ (World Bank, Africa
Regional Office, 2009, p. 26).
Accessibility metrics find most advantage when used as a comparative indicator, either
between places or in a longitudinal context. Casiroli (2009) did a cross-city comparison of accessto central tourist destinations in São Paulo (Praça de Sé) and London (Trafalgar Square) bymapping out how far one can get within 45 minutes (in green) and 90 minutes (in yellow) by car
versus public transport in the evening peak (Figure 10). Summing the number of inhabitants
residing within these travelsheds produces an isochronic measure of relative accessibility tothese major leisure destinations by mode. Modal ratios reveals that more than twice as many
Paulistas can reach Praça de Sé by private car than public transport in the P.M. peak. If reducing
the carbon footprint of the transport sector and promoting more balanced transportation are longrange goals of São Paulo‘s transportation planners, then shrinking this differential over time
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would signal progress. A smaller ratio would also better reflect benefits accrued from improving
metrorail and metrobus services than would an estimate of transit travel-time savings.
In car-oriented cities, such as the U.S., even larger accessibility advantages have beenrecorded for automobile over mass-transit travel (Cervero, 2005A). In transit-oriented cities, theobverse holds. A recent study revealed that Hong Kong residents were far more accessible tojobs via the city‘s highly integrated network of public and private bus, metro-rail, tramway, ferry,and even funicular than via private car (Kwok and Yeh, 2004).
Figure 10. Comparison of how far one can travel by car versus public transport within 45
and 90 minutes in evening peak, London and São Paulo.

While accessibility indicators are useful metrics for inter-modal comparisons and forassessing likely impacts of transportation and land-use plans over time, they need to be
expressed in monetary terms if they are to be of much use in economic appraisals. One
approach to valuing access is to measure willingness-to-pay, applying stated preferencetechniques (Metz, 2008). Another approach is to impute land-price capitalization impacts using
techniques like hedonic price modelling. A recent study of BRT in Seoul, South Korea foundcommercial land parcels within 300m of a BRT stop were upwards of 25 percent more valuable
per square meter than otherwise comparable parcels more than 300 m from a stop (Cervero andKang, 2011). A study of access to rail lines in Bangkok found similar results, with the premium oftransit accessibility estimated to be $10 for every meter that a property lies closer to a station(Chalermpong, 2007).
Rather than attaching a monetary value to transportation improvements, cost-effectivenessmeasures might be used instead. A cost-effectiveness metric might express the number of
additional jobs that can be reached within one-half hour travel time per million dollar expenditure.
Thus instead of attempting to assign a monetary value to benefits (e.g., increased access tojobs), only financial costs for project outlays are monetized. Combining data on financial
expenditures with isochronic indices of accessibility can yield a reasonable performance measurethat is free of such problems as valuing time or obtaining land valuation data.
Cost-effectiveness measures are likely better suited to many developing countries wherereliable data are limited and outcomes are difficult to measure. Cost-benefit analysis is not usedin evaluating public works projects — like a school building upgrade — when inputs cannot be
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easily translated to outcomes (e.g., higher student scores). Similar challenges in attributing
transportation investments to accessibility outcomes argue for cost-effective measures as asecond-best alternative in some instances.
Elevating the importance of accessibility and other performance measures like sustainability
and affordability in project appraisals need to be done with equity concerns in mind. If improved
access to jobs, shops, and hospital services are limited to car-owning households, little progress
will be made in alleviating urban poverty. It is thus important that all performance metrics stratify
results in ways that allow the likely distributional equity impacts of a project to be assessed.
Besides accessibility and mobility (e.g., speeds), a more robust and inclusionary framework formeasuring performance might also weigh factors like sustainability (e.g., VKT and emissions per
capital), livability (e.g., community ratings or commute delays per capita), safety (e.g., road
fatalities per 100,000 inhabitants), and affordability (e.g., percent wages spend on commuting) in
judging proposals.

11. CLOSE

Public transport is likely to gain prominence as a mobility-provider as energy prices rise,urbanization pressures and motorization increase traffic congestion, and public mandates call forsignificant reductions in Greenhouse Gas emissions. The costs of delivering services that appeal
to choice consumers who have the option of driving will no doubt increase as well. Finding waysof keeping fares affordable without overly taxing the public largesse to underwrite deficits
remains a daunting public policy challenge.
Transit subsidies can be managed and contained in a number of ways, some working on thecost side, others on the revenue side, and others on the program design and administrative side.
Competitive tendering is a proven method of reducing transit operating costs though only under
conducive conditions. Expanding the private-sector role, however, does not mean public
relinquishment of its role, particularly with regard to promoting the interests of the mobilitydisadvantaged and ensuring affordable services. Among the initiatives that could serve to temper
subsidies while better targeting public assistance to the needy are user-side subsidies,concession fares administered by client-based agencies, and time-of-day pricing. In poorer
countries, private paratransit and informal operators must often be relied upon to ensure lowincome households have reasonable mobility options. To reduce the chance of collectively
damaging behavior that often comes from over-competition, the public sector must be prepared
to initiate and enforce regulations related to safety, service standards, and if need be, affordable
fares. Institutional innovations can even extend into the co-management of affordable housing
and transport programs, as underscored by the Bogotá‘s Metrovevienda program.
Regardless how much progress is made in containing current-day transit operating costs
and stimulating revenues, reforms are needed that guide long-term investment decisions in waysthat promote efficiencies but that are also pro-poor. Moving away from the standard-bearer of
evaluating proposed transport projects principally on the basis of travel-time savings to a morebalanced perspective that weighs impacts on accessibility, affordability, and sustainability as wellwould be a positive step forward. Ultimately, the aims of public policies that help the poor andkeep costs affordable are not to serve movements as a goal in and of itself, but rather to enhance
opportunities to reach the places people want to go, be they employment destinations, medical
services, or retail outlets – in short, to create more accessible cities and regions.

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