Dec 21 2010
The Metropolitan Transportation Authority has integrated the bridges and tunnels in New York City with advanced cold weather detecting devices.
Various sensing devices had been installed in the roadways to monitor the freezing situations as soon as they occur and the above-ground atmospheric sensing units look like tiny rockets, furnishing live wind direction and velocity data from the bridges by means of wireless transmission.
The terrain thermal sensors embedded on 45 snow plows allows the detection of freezing or disastrous conditions on the roadways and delivers an early warning system to alert the bridge managers and operators. These sensing devices detect the threats on areas that have not been identified by the roadway sensing systems.
According to MTA, the Rock salt featuring an anti-corrosion additive thwarts steel corrosion on the agency's bridges. MTA stated that it possesses 102 trucks and 8,000 tons of deicers for executing the work effectively. The bridges and tunnels under MTA supervision covers Bronx-Whitestone, Henry Hudson, Throgs Neck, Verrazano-Narrows, Marine Parkway-Gil Hodges Bridges, Robert F. Kennedy, Cross Bay Veterans Memorial as well as the Brooklyn-Battery and Queens Midtown Tunnels
Source: http://www.mta.info