What is UDOT Traffic?
UDOT Traffic is an Intelligent Transportation System (ITS) that uses technology to save lives, time, and money. It is a computer-controlled system designed to monitor and manage traffic flow on freeways and surface streets. System components include closed-circuit television (CCTV) cameras, electronic variable message signs (VMS), the 511 Travel Information Line, coordinated traffic signals, ramp meters, traffic speed and volume sensors, pavement sensors, and weather sensors.
Where can I get traveler info?
  • By using the UDOT Traffic App.
  • From the UDOT Traffic website.
  • From the UDOT Traffic Twitter page.
  • Dialing 511 on your telephone.
  • Selecting UDOT Traffic Alerts, from your profile page.
How does UDOT Traffic work?
Using closed-circuit TV cameras, traffic and weather sensors, coordinated traffic signals, and ramp meters, operators in the Utah Department of Transportation (UDOT) Traffic Operation Center (TOC) monitor and manage traffic flow on surface streets and freeways. The UDOT TOC is connected to smaller Traffic Control Centers (TCCs) in Salt Lake City and Salt Lake County, as well as UTA's three Radio Control Centers. All these agencies work together to improve travel along the Wasatch Front. The traffic, weather, and accident information collected at the TOC is communicated to Utah travelers via the 511 Travel Information Line, electronic roadway signs, radio, television, and the Internet. This information helps travelers "Know Before They Go" and allows them to make informed transportation decisions.
How did UDOT Traffic begin?
As Utah continues to grow, so does the challenge of mobility. In 1995, the Utah Senate passed Senate Bill 1995-12, which addressed Utah's transportation challenges by establishing a Traffic Management Committee to work with UDOT in implementing Traffic Management Systems on state highways. The Traffic Management Committee (TMC) consists of representatives from Salt Lake City, UDOT, Wasatch Front Regional Council, Mountainland Association of Governments, Salt Lake County, the Department of Public Safety, and the Utah Department of Air Quality. This committee recognized the benefits of using an Intelligent Transportation System (ITS) to manage traffic flow and improve the efficiency of existing roads. The Utah Transit Authority and the Federal Highway Administration also partnered with the TMC as additional ITS possibilities were explored. UDOT Traffic is made possible through the cooperation of these public agencies.
How effective is UDOT Traffic?
In its first years of operation, UDOT Traffic has proven its effectiveness. The system has already helped increase peak-hour freeway speeds by 20% and reduce freeway delays, traffic signal stops, and intersection delays by 36%, 15%, and 27%, respectively. And this is just the beginning of what UDOT Traffic has to offer.
Does this mean I never have to stop at a red light?
Although UDOT Traffic cannot guarantee you will only get green lights, the system does help make traveling along the Wasatch Front more efficient. UDOT Traffic has already helped reduce traffic signal stops by 15%. It has also helped reduce intersection delays by 27 %. Continued benefits are anticipated as the timing at more and more intersections is updated.
Why does Utah need UDOT Traffic?
UDOT Traffic has already improved the safety and efficiency of transportation all along the Wasatch Front. Many Utah cities and towns are experiencing significant population growth, with the accompanying traffic congestion and economic impacts. UDOT Traffic is a cost-effective and efficient solution to help relieve congestion on roads and highways. Although UDOT Traffic doesn't mean we will never need to build additional roads, it represents a transportation solution that allows the maximum efficiency on existing roads.
Will UDOT Traffic save me money? If so, how are cost savings measured?
Yes, in only its first few years of operation, UDOT Traffic has already saved Utahns time and money. By increasing peak-hour freeway speeds while reducing freeway delays, traffic signal stops, and intersection delays, UDOT Traffic is projected to save Utahns more than $100 million each year.
How does UDOT Traffic enhance safety?
By reducing congestion, UDOT Traffic helps decrease the number of accidents that occur. When accidents do occur, UDOT Traffic helps emergency personnel quickly identify, respond to, and clear the accident. These highly trained personnel include UDOT's Incident Management Team members who help stranded motorists and assist the highway patrol in managing traffic around accidents.
Is UDOT Traffic a law enforcement tool?
UDOT Traffic is designed to increase the safety and efficiency of local roads and freeways and to inform drivers of adverse conditions such as accidents or congestion. It is not intended to identify speeders or enforce traffic laws.
Will the camera footage be recorded and saved?
As a general rule, camera footage will not be recorded and saved. Some occasional camera footage may be recorded strictly for training purposes. This footage will be used to analyze and improve responses to future roadway incidents.
How can I find out if there is a tranportation problem along my route?
One of the most important features of UDOT Traffic is its ability to give Utahns valuable real-time transportation information. The transportation, weather, and accident information constantly gathered at the TOC is communicated to Utah travelers via the 511 Travel Information Line, radio, television, the Internet, the UDOT App, the UDOT Twitter page and electronic message signs along the roadways.
What is the 511 travel information line and how does it work?
5-1-1 is a FREE travel information phone number that offers statewide updates on transportation, including traffic, winter road conditions, public transit, and Lake Powell Ferry services. With 511, finding the transportation information you need to "Know Before You Go" is easier than ever before. Like dialing 911 for an emergency or 411 for directory assistance, those who travel in Utah can dial 511 toll-free to obtain transportation information. Travelers wishing to access the system from outside the state can call 866-511-UTAH (8824). The system is voice-activated, allowing callers to simply speak their requests instead of having to select options by dialing more numbers. Utah was one of the first states to launch 511 after the Federal Communications Commission officially designated 511 as a nationwide number for travel information in July 2000.
What is the "Amber Alert"? How is it related to UDOT Traffic?
"Amber Alert" is the national name of the Child Abduction Alert System. This system is a voluntary, cooperative partnership between law-enforcement and other agencies as well as local broadcasters. It is designed to alert the public when a child has been abducted and is believed to be in grave danger. UDOT Traffic has been selected as an "official source" of Amber Alert information and supports the system by disseminating information to the public via electronic roadway signs, highway advisory radio, the 511 Travel Information Line, the UDOT Traffic website, and e-mail alerts. To find out if there is currently an Amber Alert, you may click on the "Alerts" button on the top toolbar of this website and then select "Amber / Child Abduction Alerts." You will also experience a pop-up alert when you log onto this site if there is a current Amber Alert.

The public plays an essential role in the success of the Amber Alert. The plan relies on the public to help locate abducted children before it's too late. Following are instructions for the public:
*If you hear an Amber Alert be on the lookout for the child and suspect described in the alert message. The alert will include a telephone number so you can report any sightings to that number as soon as possible. Call 911 if you are unsure of the number.
*Local TV and radio broadcasters will have updated information about the victim or suspect. You can also obtain "Amber Alert" information by calling 511 or by checking this website (udot.utah.gov/traffic).

*If you witness a child abduction, contact your local law enforcement agency or 911 to report it quickly. Be sure to make note of important information such as the physical characteristics of the child and suspect, the make and model of any vehicles involved (including license plate numbers if possible), and the precise location of the abduction.
Can I tour the TOC or get more information?
To schedule a tour of the TOC or for more information, please call (801) 887-3710.
Do the map pages automatically refresh?
Yes, all map pages on this site will automatically reload with new fresh images and data every 5 minutes.  After connecting to the site you could leave the page open for hours and see the traffic information updated on a regular basis.
What is the best browser to use when viewing the UDOT Traffic web site?
Internet Explorer 8 and above, Chrome, and Mozilla Firefox.
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