Date of Award

Spring 5-5-2023

Document Type


Degree Name

Master of Arts (MA)



First Advisor

Partha Deb

Second Advisor

Karna Basu

Academic Program Adviser

Karna Basu


Responding to concerns about road safety, New York City passed a law called Vision Zero in 2014 that progressively decreased all local road speed limits to 25 miles per hour. This was in an effort to increase road safety from collisions. Starting a year prior to Vision Zero, the city started lowering speed limits in certain high-risk roads. I use data on accidents from New York City Open Data to examine the effect of reducing speed limits in Manhattan. The analysis exploits the implementation of lower speed limits on some roads prior to 2014 that provides a quasi-experimental design. Estimates from Poisson regressions show that the casualty count significantly decreased due to the program, but the number of people killed did not significantly decrease.

Included in

Economics Commons



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