Cities, transportation and land use are linked, much closer than many people think. This page describes my beliefs on these subjects.
What is a City?
A city is a collection of different economic interests in a small area. Cities provide the economies of scale that enable most of the population to not spend all their time just sustaining themselves.
The early origins of cities probably started when a group of people decided to stay in one location and embrace agriculture. The farmers would not grow all the types of crops, or manage all the types of animals themselves, instead they would specialize and barter their food for other food. To do this efficiently, the equivalent of a market is required.
Some people would not do any food production at all, but produce other things, like tools and goods, and would barter their goods for food. Eventually the range of items that would be available grows, and as the efficiency of producing food increases the number of people who are farmers will decrease. Today, only about 1% of a developed countries population is directly involved in the production of food.
Functions of a City
A city has two main functions:
1) To enable people to be close to many other people so that everybody will benefit.
2) To enable goods to be transported from one point to another.
Cities, Transportation and Land Use