image of road construction

More Lanes Does Not Mean Less Congestion, Manville Says

Michael Manville, associate professor of urban planning, spoke to WWJ Radio’s The Break Down: Road Work Ahead about the impact of deteriorating infrastructure on traffic congestion. Governments cannot keep up with road repairs, and adding more lanes has proven to be ineffective, the podcast noted. In Los Angeles, an additional lane was added to Interstate 405 in the hopes of alleviating congestion. This project ultimately failed, which was “actually entirely predictable,” Manville said. “Anything that you’re doing to try and add capacity will not reduce congestion,” he said, explaining that adding lanes simply attracts more drivers. “It lowers the price in time of using the road, and you can’t reduce congestion by making driving on a busy road at a busy time less expensive. It becomes fundamentally self-undermining,” he said.


 

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