Associate Professor of Urban Planning Michael Manville, who comments frequently on reducing traffic by implementing congestion pricing during peak hours, shared his views with a national audience in an interview with NBC News.  The article noted that congestion pricing has been successfully adopted in Singapore, Stockholm, London and Milan and is under serious consideration in Los Angeles, Seattle, Boston and New York. “If you can find a way to deter a small proportion of vehicles, you get a big improvement in speed and big increase in flow,” Manville said of congestion pricing. Cars stuck in traffic contribute more to pollution than cars in free-flow traffic, he added. Manville said congestion pricing is sensible yet politically difficult because politicians are wary of imposing added costs to voters. The key is to change people’s mindset, he said. “We are so used to the road being free,” he said. “If your water wasn’t metered, you might take a longer shower, even if it wasn’t that important to you.”