The restriction measures described above were implemented in different times and combinations in the two urban areas and therefore had different degrees of impact on the mobility indicators calculated based on CDR data for the three study periods (October 2019, 2020, and 2021). In Bogota, none of the study periods were affected by direct mobility restriction measures: there were no direct restrictions on all trips (peak and license plate), although there were peak and license plate restrictions on private vehicle trips between Monday and Friday. The hours of application of the measure are from 6:00 to 8:30 in the morning and from 15:00 to 19:30 in the afternoon. The maximum allowed occupancy in public transport vehicles was still only 70 percent in October 2020 but already 100 percent in October 2021, and there were some restrictions on non-essential gatherings, capacity of large events, and in-person studies in both October 2020 and 2021. In AMBA, the October 2020 study period was still affected by both travel restriction measures (last weeks of enforced social, preventive and mandatory isolation (ASPO)) and restriction on the use of public transport, which was only allowed for essential workers. The October 2021 study period was no longer affected by these constraints.

# _4.3. Planning and transport supply adjustments_

Bogota's public transport system significantly reduced its supply during the periods of mandatory isolation. The first weeks of confinement saw the greatest reductions, with Transmilenio's programmed fleet values reaching 20-25 percent of the usual levels. However, supply did not fall as much as demand, with the objective of maintaining the occupancy conditions established by the public transport distancing measures mentioned above. Public transport supply grew in the second half of 2020, and by October 2020, the number of buskilometers traveled on the zonal, feeder, and trunk lines were already higher than in October 2019. In 2021, the supply of the zonal component continued to grow (in October 2021 being 20 percent above the October 2019 levels in terms of the number of dispatches and 30 percent above in terms of vehicle-km traveled), while the trunk and feeder supply was adjusted downwards (by 30 percent and 10 percent, respectively, compared to 2019) (Figure 2).

**_Figure 2:_** _Change in the number of kilometers traveled in the months of October 2019, 2020 and 2021 (million)_

<!-- Start of picture text --> a. Bogota (buses) b. AMBA (buses and trains)<br>Oct-19 31 59<br>Oct-19<br>Oct-20 28 50.1<br>Oct-21 Oct-20<br>23.8 40.7<br>14.2 15<br>10<br>4.4 4.5 4<br>2.2 1.8 1.9<br>Trunk Feeder Zonal National jurisdiction buses Trains<br>Source: Transmilenio, Ministry of Transport of the Government of the City of Buenos Aires<br><!-- End of picture text --> Similarly, in AMBA, the public transport system significantly reduced its offer during the periods of strict confinement (ASPO). The first weeks of confinement saw the greatest reductions, with limited occupancy and limited train and bus dispatches. However, supply did not fall as much as demand, in order to maintain the occupancy conditions established by the public transport distancing measures. The supply of national jurisdiction bus services – serving within-CABA and CABA-Province routes – was reduced by 31 percent of vehicle-km, while train service was cut by 18 percent. The subway (Subte) service, which is important for mobility within CABA although it represents a fraction of the vehicle-kilometers of service offered by the bus and train lines, was reduced by nearly 44 percent. In addition to the drop in the number of seats offered, some 8