by Michael Lewyn
One common argument against new rail service is that rail cannibalizes bus ridership. One version of this argument is that riders of new light rail systems are nearly always former bus riders, so that any increase in rail ridership comes at the expense of bus ridership. A second version is that the costs of rail make it impossible for a region to maintain a first-class bus system.
If the first claim was correct, regions that introduced new light rail would be the most likely regions to have reduced bus ridership. A new post at City Observatory suggests that the correlation between new rail and reduced ridership is pretty modest. Daniel Hertz, one of our nation’s most interesting urban planning bloggers, has assembled data on bus ridership and service trends since 2000, including information from 39 urbanized areas with over 1 million people. His data shows that nine regions have experienced bus ridership losses of over 20 percent (Baltimore, Atlanta, Dallas, Cincinnati, Houston, Cleveland, Detroit, Milwaukee, San Jose). Four of these cities (Baltimore, Dallas, Houston, San Jose) have built significant new rail in the past couple of decades. But five other cities in America’s Bus Ridership Dishonor Roll either lack significant rail service or (in the case of Cleveland) have primarily pre-2000 rail systems. By contrast, 30 other regions have experienced either ridership gains or more modest ridership losses: 13 of these regions have added new rail service, and 16 have not.* In other words, about one-fourth of the new rail cities (4 of 17) have suffered major ridership losses, and also about one-fourth of the other cities (5 of 22). Thus, the association between rail and reduced ridership is either nonexistent or fairly modest.
The association between new rail and bus service cuts is even weaker. Since 2000, six urbanized areas (Cleveland, Milwaukee, Pittsburgh, Detroit, San Jose, Houston) have reduced bus service, measured by route-miles, by over 20 percent. Only two of these regions (San Jose and Houston) have significant new light rail systems. (Two more, Cleveland and Pittsburgh, are “legacy rail” cities with significant but older rail systems). Continue reading
