existing paved road network is expanded significantly? We investigate this question for the case of Turkey, which undertook a … large-scale public investment in roads during the 2000s. Using spatially disaggregated data on road upgrades and domestic …

streets. We compare BEA's capital measures with more readily understood physical measures of road and lane miles, road quality …

road roughness throughout America using vertical acceleration data from Uber rides across millions of American roads. Our … measure correlates strongly and positively with other measures of road roughness where they are available, negatively with … driver speed, and we find road repair events decrease roughness and increase speeds. We measure drivers' willingness …

We examine the effect of school traffic pollution on student outcomes by leveraging variation in wind patterns for …

's traffic police agency is to manage traffic and to enforce the traffic code. We first document that, in the capital's branch …, Kinshasa, traffic violation fines account for only 22% of the revenue of the branch. The remaining 78%, unofficial, comes from … first mandate, while not improving its ability to fulfill the second. First, the quota causes 65% of all traffic jams and …

electrification as the dominant decarbonization pathway. While deep electrification is promising for road transportation in wealthy …

We examine a statewide program that identifies police departments with large racial disparities in traffic stops and … months) reductions in the number of minorities involved in traffic stops, with no impact on stops of white drivers …. Reductions in traffic stops involving minority drivers primarily result from fewer pretextual stops (85%) for lighting violations …