Historian Kevin Kruse suggests the traffic congestion in today’s big cities is connected to segregation:
This intertwined history of infrastructure and racial inequality extended into the 1950s and 1960s with the creation of the Interstate highway system. The federal government shouldered nine-tenths of the cost of the new Interstate highways, but local officials often had a say in selecting the path. As in most American cities in the decades after the Second World War, the new highways in Atlanta — local expressways at first, then Interstates — were steered along routes that bulldozed “blighted” neighborhoods that housed its poorest residents, almost always racial minorities. This was a common practice not just in Southern cities like Jacksonville, Miami, Nashville, New Orleans, Richmond and Tampa, but in countless metropolises across the country, including Chicago, Cincinnati, Denver, Detroit, Indianapolis, Los Angeles, Milwaukee, Pittsburgh, St. Louis, Syracuse and Washington.
While Interstates were regularly used to destroy black neighborhoods, they were also used to keep black and white neighborhoods apart. Today, major roads and highways serve as stark dividing lines between black and white sections in cities like Buffalo, Hartford, Kansas City, Milwaukee, Pittsburgh and St. Louis. In Atlanta, the intent to segregate was crystal clear. Interstate 20, the east-west corridor that connects with I-75 and I-85 in Atlanta’s center, was deliberately plotted along a winding route in the late 1950s to serve, in the words of Mayor Bill Hartsfield, as “the boundary between the white and Negro communities” on the west side of town. Black neighborhoods, he hoped, would be hemmed in on one side of the new expressway, while white neighborhoods on the other side of it would be protected. Racial residential patterns have long since changed, of course, but the awkward path of I-20 remains in place…
[S]uburbanites waged a sustained campaign against the Metropolitan Atlanta Rapid Transit Authority (MARTA) from its inception. Residents of the nearly all-white Cobb County resoundingly rejected the system in a 1965 vote. In 1971, Gwinnett and Clayton Counties, which were then also overwhelmingly white, followed suit, voting down a proposal to join MARTA by nearly 4-1 margins, and keeping MARTA out became the default position of many local politicians. (Emmett Burton, a Cobb County commissioner, won praise for promising to “stock the Chattahoochee with piranha” if that were needed to keep MARTA away.) David Chesnut, the white chairman of MARTA, insisted in 1987 that suburban opposition to mass transit had been “90 percent a racial issue.” Because of that resistance, MARTA became a city-only service that did little to relieve commuter traffic. By the mid-1980s, white racists were joking that MARTA, with its heavily black ridership, stood for “Moving Africans Rapidly Through Atlanta.”…
Earlier this year, Gwinnett County voted MARTA down for a third time. Proponents had hoped that changes in the county’s racial composition, which was becoming less white, might make a difference. But the March initiative still failed by an eight-point margin. Officials discovered that some nonwhite suburbanites shared the isolationist instincts of earlier white suburbanites. One white property manager in her late 50s told a reporter that she voted against mass transit because it was used by poorer residents and immigrants, whom she called “illegals.” “Why should we pay for it?” she asked. “Why subsidize people who can’t manage their money and save up a dime to buy a car?”
Translation: decisions about transportation were both a consequence of a national inclination toward racial and ethnic segregation and an ongoing contributor toward racial and ethnic segregation. In a country that is relatively sprawling and prefers cars, determining who has access to transportation and what kind of transportation is available can be part of who can get ahead.
While the root cause of all of this may be racial issues, it is interesting to consider this as a congestion issue. Would the public be convinced to change transportation infrastructure because they dislike sitting in traffic? The evidence from Atlanta as well as numerous other American cities (such as developing a regional transportation effort in the Chicago region) suggests this is not a strong argument. Wealthier residents are hesitant to ride buses, trains may be tolerable, but driving is still preferred even when so many hours per year are devoted to it. Suburban Americans like cars and they like the ability to exclude and I would argue the second is the master priority when push comes to shove.