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SALT LAKE CITY -- The current decal program for the I-15 Express Lanes will be replaced by an electronic payment system by the fall of 2010.
The decal program, which allows 1,600 drivers to pay $50 a month to use the Express Lanes was only temporary.
The Federal Highway Administration authorized the decal program under the condition that UDOT convert to an electronic payment system.
UDOT announced Thursday construction will begin this winter. TransCore, which specializes in electronic traffic management systems, was chosen to construct the new system, which uses overhead road signs to detect in-vehicle transponders.
When complete the new system will extend from Beck Street in Salt Lake City to American Fork Main Street and State Street in Farmington to the south Layton interchange.
UDOT says an electronic system is more efficient and allows more drivers to participate on an as-needed basis. It also says it will allow it to better manage I-15 traffic.
Pricing for using the Express Lanes will be built around a traffic condition algorithm that adjusts based on traffic conditions. UDOT says similar systems are used in a number of other states including California, Florida, Minnesota and Washington.
Use of the lanes will remain free for carpooling vehicles.