the cities has grown a network of transportation to carry men and goods in a steady flow of comers largest of these cities is new york here we find a good example such transportation arteries also develop within the city itself some of the people who work in manhattan live in apartment houses and other sections of the city others in single family houses out in the suburbs in the mornings manhattan acts like a heart and draws in the workers from their homes in the surrounding areas the streets become filled with crowns of workers and shoppers then in the evening and the business section becomes to go city when work is over new yorkers like people everywhere seek places of recreation sometimes they go to coney island or more distant beaches or broadway and so we see that the main job of transportation in the city is to carry people between three points where in new york city people have a choice of several arteries of transportation certainly the most important means within the city is the subway almost any section of the city is within easy walking distance of  subway station than via subway one can travel to most points of the city here and cheaper than by any other way the subway schedules are arranged to meet the changing flow of traffic in the early morning there is heavy subway travel followed by a slackening in the late afternoon there is a second rush returning workers to their home at night the load rolls lighter and lighter because the subways serve only the city suburban trains take their place and providing transportation to and from outlying communities since these trains serve a larger area with less people the fare costs more and there about two miles from the station the train goes underground from the station the commuters continue on their way by buses taxis are on foot like the subways in the mornings the suburban trains carry heavy loads of workers to the city  followed by a slackening in the late afternoon there is a second surge as workers leave the city and return to their suburban homes at night there is less in new york the bus lines form another important store windows and the people of the city as they work and play suburban buses are the outlying communities and these which the city they usually transfer their passengers to the subway which is faster one of the arteries of new york perhaps the automobile routes have created the most problems to provide easy travel in new york many natural obstacles had to be overcome for one thing bridges had to be built to manhattan since it is an island surrounded by broad rivers with the development of steel cables modern suspension bridges became possible and during the last century one bridge after another has been built across the river every large city has the problem of unusually heavy traffic during rush hour as a solution many states are one way others have restricted parking zones and parking buildings keep cars off the being just when and where they are needed providing transportation for new york's millions is the job of many kinds of experts this group of research workers penalizes population trends to determine when and where new arteries are needed over a period of time the people of the city move from all sections to new ones as the population shifts to other sections transportation the development of new sources of power and faster transportation there will be new problems to solve but new york like all progressive cities is studying and planning today to provide the batteries for tomorrow through which