The Department of Transportation's responsibilities include day-to-day maintenance of the city's streets, highways, bridges, sidewalks, street signs, traffic signals, and street lights. DOT supervises street resurfacing, pothole repair, parking meter installation and maintenance, and municipal parking facility management. DOT also operates the Staten Island Ferry. DOT is the exclusive provider of day-to-day operations and maintenance state-maintained roads and highways in city limits, while major repairs and capital improvements on state-owned roads are performed by the State DOT. Both DOT and NYSDOT reserve the right to install signage, signals, and other roadway features on state highways, which then become maintained on a daily basis by DOT. DOT sets the speed limit on all roads and highways in the city, including those owned by NYSDOT. DOT is also responsible for oversight of transportation-related issues, such as authorizing jitney van services and permits for street construction. DOT also advocates for transportation safety issues, including promotion of pedestrian and bicycle safety. Its regulations are compiled in title 34 of the New York City Rules.
Traffic and street lights
, the DOT oversaw 12,460 intersections citywide with traffic lights. By 2017, the DOT controlled nearly 13,000 signalized intersections, almost all of which had pedestrian signals; of these, over half had countdown timers for pedestrians. In addition, 635 signalized intersections under the DOT's control had exclusive pedestrian phases as of 2017, and the DOT maintained 548 accessible pedestrian signals as of 2019. The DOT maintains 250,000 streetlamps as of 2019. Most of them are LED lamps, installed between 2013 and 2018. One of the larger groups of traffic restrictions implemented by the DOT is in Midtown Manhattan, where the DOT maintains a system of "thru streets" and split traffic-signal phases to prevent congestion on west-east streets.
As of 2017, DOT had the budget and staff as follows:
Division
Number of Employees
Budget
Executive
598
$116.8
Highway Operations
1492
$277.8
Transit Operations
694
$91.8
Traffic Operations
1418
$353.3
Bureau of Bridges
858
$106.3
Total
5060
$943.3
Bridges
The DOT operates 794 roadway and pedestrian bridges throughout New York City, including 25 movable bridges. The agency's portfolio includes most of the East River and Harlem River bridges, as well as smaller bridges throughout the city. DOT operates two retractable bridges. Other agencies that operate road bridges in New York include the MTA, the PANYNJ, and the NYSDOT. East River bridges:
