The Department of Transportation is charged with providing safe, efficient, and environmentally responsible movement of people and goods in the City of New York. Its mission is to maintain and enhance the transportation infrastructure vital to economic commerce and the quality of life of City residents.

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Economic Impact Study of Street Improvement Projects

The New York City Department of Transportation (DOT) engaged Bennett Midland to assess the economic impact of recent street improvement projects, including the separated bike lanes on 8th and 9th Avenues, plaza improvements around Madison Square, and the reconstruction of Houston Street. To begin the project, we worked iteratively with DOT to develop an innovative methodology, using sales tax data from the Department of Finance to quantify the impact of improvements on sales of nearby retail establishments and restaurants. Bennett Midland identified a series of comparison areas—similar in type and close in proximity to the study group—to isolate the effects of DOT’s improvements from other contemporaneous changes in the city.

In 2012, former New York City Department of Transportation Commissioner Janet Sadik-Kahn announced the results of this study. The report has been cited for its original methodology and its implication for city planning nationwide.

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