TRAFFIC SIGNALS: Utah DOT traffic software cuts chances of hitting red light to 28%

Dec. 23, 2013

Utah DOT’s (UDOT’s) traffic-analyzing software, paired with highway traffic sensors, has allowed the state to reduce red lights’ effect on traffic. Using the software, UDOT adjusted traffic lights and made it so an average of 28% of traffic hits a red light at a given highway intersection.

 

Utah DOT’s (UDOT’s) traffic-analyzing software, paired with highway traffic sensors, has allowed the state to reduce red lights’ effect on traffic. Using the software, UDOT adjusted traffic lights and made it so an average of 28% of traffic hits a red light at a given highway intersection.

Before the system, UDOT relied on direct feedback from drivers and in-person studies to measure the effectiveness of intersection traffic management. The new system utilizes radar units, video units and electromagnetic loops in the pavement, which automatically send UDOT information on how many cars hit red or green lights and how fast they approach the intersection.

According to system data, Bangerter Highway and 4100 South has the worst red light rate in November, with 82% of traffic stopping at the intersection. The best intersection for the month was at the I-15 northbound ramp and 12th street in Ogden, where no cars encountered a red light.

UDOT will continue to use the software to improve traffic light management. Meanwhile, other states are looking into copying the system for their own use.

Sponsored Recommendations

The Science Behind Sustainable Concrete Sealing Solutions

Extend the lifespan and durability of any concrete. PoreShield is a USDA BioPreferred product and is approved for residential, commercial, and industrial use. It works great above...

Proven Concrete Protection That’s Safe & Sustainable

Real-life DOT field tests and university researchers have found that PoreShieldTM lasts for 10+ years and extends the life of concrete.

Revolutionizing Concrete Protection - A Sustainable Solution for Lasting Durability

The concrete at the Indiana State Fairgrounds & Event Center is subject to several potential sources of damage including livestock biowaste, food/beverage waste, and freeze/thaw...

The Future of Concrete Preservation

PoreShield is a cost-effective, nontoxic alternative to traditional concrete sealers. It works differently, absorbing deep into the concrete pores to block damage from salt ions...