1) Over the past 150 years, railroad and highway systems influenced patterns of urban growth in the United States. A. Identify and explain one way that railroads affected the size and one way that railroads affected the form of cities in the United States between 1870 and 1920. B. Identify and explain two ways that the Interstate Highway System affected cities in the United States between 1950 and today.

Following are the responses to the given question:

Explanation:

For point A:

Cities by size - larger mass has occurred when people had left the city due to the railways' connectivity & accessibility.City shape - The CBD had begun to expand and improve with the railways.

For point B:

The Highway System has begun that induce the growth of towns on the edge as well as the towns mostly on edge.Bypassed cities were established since the transport infrastructure that fostered economic activity is not linked with it.