City
State
Country
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Latitude
40.76
Longitude
-111.89
Content that references this location
Field Study Shows Routes of Connected Snowplows Had a Larger Reduction in Roadway Crash Rates (up to 3.87) than their Non-Equipped Counterparts (1.82).
METHODOLOGY
The study consisted of a field test over the months of October 2019 to March 2020 along five V2X-equipped corridors in the Salt Lake City metropolitan area. Data was collected during and…
Content type
Date Posted
05/26/2023
Taxonomy (ARC-IT)
Weather Data Collection (WX01)
Geolocation links
Transit Signal Priority (TSP) Communications Logged Between Buses and Signal Controllers Improved Planning for Signal Retiming Efforts at 30 Signalized Intersections in Salt Lake County, Utah Which Improved Bus Run-Time Reliability Up to 2.7 Percent.
METHODOLOGY
For this CV-based TSP application, DSRC radios from four vendors were installed at 30 intersections and on several buses for communication between vehicles and roadside infrastructure.…
Content type
Date Posted
02/28/2023
Geolocation links
Simulation Study with Real-world Signal Control Software Found Freight Signal Priority for Connected and Automated Vehicles Has the Potential to Reduce Truck Intersection Delays Between 10 and 70 Percent, with Minimal Impacts on Other Traffic.
METHODOLOGY
This project used a communication process which uses latitude/longitude coordinates of CAVs and intersections to define the detection zone and enables information sharing. Once the…
Content type
Date Posted
02/23/2022
Taxonomy (ARC-IT)
Queue Warning (VS08),
Traffic Signal Control (TM03),
Integrated Decision Support and Demand Management (TM09),
Freight Signal Priority (CVO06)
Geolocation links
Utah DOT Assessment of Adaptive Traffic Signal Control in a Connected and Automated Vehicle (CAV) Environment Estimates A Benefit Cost Ratio of 14.24 at Just 25 Percent Market Penetration.
Methodology
Related bus data from UDOT and Utah Transit Authority (UTA) for the deployment site was first collected to conduct the B/C analysis. Travel time savings served as the main metric used to…
Content type
Date Posted
09/27/2021
Taxonomy (ARC-IT)
Traffic Signal Control (TM03),
Connected Vehicle Traffic Signal System (TM04),
Transit Signal Priority (PT09)
Geolocation links
First-of-its-kind DSRC corridor in Utah improves transit reliability by 12 percent, reduces late bus arrivals by 40 percent.
The DSRC radios were installed at 30 signalized intersections along Redwood Road, from 400 South to 8020 South to broadcast both Signal Phase and Timing (SPaT) and intersection geometry (MAP)…
Content type
Date Posted
02/21/2019
Taxonomy (ARC-IT)
Transit Signal Priority (PT09)
Geolocation links
Augmenting bus rapid transit with GPS-based transit signal priority strategies can reduce transit time by almost 10 percent with minimal non-transit impact.
RESULTS
The analysis found that GPS-based TSP strategies can provide transit delay reductions and travel time savings as effective as traditional TSP tools, but with greater flexibility and lower…
Content type
Date Posted
02/21/2019
Taxonomy (ARC-IT)
Transit Signal Priority (PT09)
Geolocation links
Use of Transit Signal Priority systems for Bus Rapid Transit can reduce transit time by 9 percent, with minimal impact to non-transit traffic.
RESULTS
The implementation of TSP and GPS-enabled TSP systems decreased transit travel time by approximately 8.5 percent and 9 percent, respectively. These time savings held even in scenarios in…
Content type
Date Posted
11/27/2018
Geolocation links
Fuel efficiency test of platooning technology near Salt Lake City reports a 10 percent fuel consumption reduction for the trailing tractor trailer and 4.5 percent reduction for the lead tractor trailer
Test Methodology
Testing occurred over two days (19-20 November 2013) on six segments of approximately 40 miles each along I-80 west of Salt Lake City. The following test equipment was used:
Two…
Content type
Date Posted
03/28/2017
Taxonomy (ARC-IT)
Cooperative Adaptive Cruise Control (VS14),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16)
Geolocation links
Inductive charging on Utah State Univeristy electric bus enables lighter, cheaper batteries while achieving 90 percent power transfer efficiency.
One such funded project includes the WPT electric bus implementation at Utah State University (USU) and later the University of Utah. A start-up at USU named WAVE (Wireless Advanced Electric Vehicles…
Content type
Date Posted
12/09/2016
Taxonomy (ARC-IT)
Electric Charging Stations Management (ST05)
Geolocation links
Most communities rate benefits of emergency vehicle traffic signal pre-emption from “moderate” to “very high”.
Traffic signal pre-emption systems allow a temporary interruption to normal operation of traffic signals to give emergency vehicles priority. This is done by changing traffic signals in the path of…
Content type
Date Posted
02/09/2016
Taxonomy (ARC-IT)
Emergency Vehicle Preemption (PS03)
Geolocation links
Introduction of delivery fleet tracking system results in fuel savings of $4,815 across the five-truck fleet during a month long pilot program.
MethodologyThe Salt Lake City branch of the Crescent Electric Supply Company (CESC) wanted to increase its total number of deliveries while reducing the average amount of time for each fulfillment.…
Content type
Date Posted
11/30/2014
Taxonomy (ARC-IT)
Freight Administration (CVO02)
Geolocation links
Respondents surveyed after two winter storms reported 83 and 95 percent satisfaction respectively per storm with UDOT's mobile traffic app and road weather reporting system.
METHODOLOGYTo evaluate the project, a pilot test was conducted to demonstrate operations from January through April 2013. Several storm events occurred during this period. Operational data were…
Content type
Date Posted
08/29/2014
Taxonomy (ARC-IT)
Weather Data Collection (WX01),
Spot Weather Impact Warning (WX03),
Infrastructure Monitoring (MC09)
Geolocation links
The deployment of side object detection systems on 257 transit buses in two different transit agencies reduced the side collision rate per 100,000 Vehicle Miles Traveled by 0.186.
FINDINGS
The evaluation quantified the reduction in the type of side collisions that SODS could prevent. The performance of SODS in identifying side objects was limited to objects located toward the…
Content type
Date Posted
03/15/2010
During the 2002 Winter Olympic Games, usage of the CommuterLink traveler information system spiked dramatically, resulting in a 650 percent increase in daily hits to the website.
Findings from Salt Lake City, Utah
Salt Lake City is a medium to large-sized urbanized area located in North Central Utah. The most significant tourist activity in the Salt Lake City Region is…
Content type
Date Posted
03/01/2010
Geolocation links
In Salt Lake City, Utah, staff meteorologists stationed at a TOC provided detailed weather forecast data to winter maintenance personnel, reducing costs for snow and ice control activities, and yielding a benefit-to-cost ratio of 10:1.
RESULTS
By examining the labor and materials cost for winter maintenance in the 2004-2005 season for 77 UDOT sheds, an artificial neural network model was trained and tested to establish the shed…
Content type
Date Posted
11/19/2008
Taxonomy (ARC-IT)
Roadway Automated Treatment (MC03),
Personalized Traveler Information (TI02),
Weather Information Processing and Distribution (WX02),
Spot Weather Impact Warning (WX03),
Winter Maintenance (MC04),
Weather Data Collection (WX01),
Infrastructure Monitoring (MC09),
Regional Traffic Management (TM07)
Geolocation links
In Salt Lake City, Utah, a transit Connection Protection system yielded a small, but not statistically significant, increase in the number of travelers satisfied with their travel experience; 87 percent compared to 85 percent.
RESULTSThe system resulted in a small increase in the number of travelers satisfied with their travel experience; 87 percent compared to 85 percent. Even though the difference is not statistically…
Content type
Date Posted
04/25/2008
Taxonomy (ARC-IT)
Transit Vehicle Tracking (PT01)
Geolocation links
During the 2002 Winter Olympic Games in Salt Lake City, Utah, a survey about the CommuterLink Web site showed that 98 percent of visitors and 97 percent of residents who used the Web site said it worked well for them
Content type
Date Posted
01/31/2006
Taxonomy (ARC-IT)
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09),
Broadcast Traveler Information (TI01),
Personalized Traveler Information (TI02),
Personnel Device Maintenance (SU13),
Trip Planning and Payment (TI04),
Travel Services Information and Reservation (TI09)
Geolocation links
In Salt Lake City, Utah the ADVISE fog warning system tested on a two-mile section of I-215 promoted more uniform traffic flow, reducing vehicle speed variability by 22 percent while speeds increased 11 percent.
Notes:See also: Perrin, Joseph, et al. Effects of Variable Speed Limit Signs on Driver Behavior During Inclement Weather. Paper presented at ITE 2000 Annual Meeting. Nashville, Tennessee. 6-10 August…
Content type
Date Posted
03/23/2005
Taxonomy (ARC-IT)
Roadway Automated Treatment (MC03),
Traffic Information Dissemination (TM06),
Weather Information Processing and Distribution (WX02),
Spot Weather Impact Warning (WX03),
Weather Data Collection (WX01),
Variable Speed Limits (TM20)
Geolocation links
Unmanned Aerial Systems are Recommended for Routine Bridge Inspections, While Hands-On Inspections Should Still Accompany Fractured Critical Members.
Use UAS during routine inspections of large, long, and complex bridges. On such bridges, the reduction in time required for an inspection using a UAS, compared with that needed for a traditional…
Content type
Date Posted
01/25/2022
Taxonomy (ARC-IT)
Infrastructure Monitoring (MC09),
Transportation Infrastructure Protection (PS09),
Roadside Lighting (ST04),
Connected Vehicle System Monitoring and Management (SU01),
Core Authorization (SU02),
Map Management (SU04),
Location and Time (SU05),
Object Registration and Discovery (SU06),
ITS Communications (SU07),
Security and Credentials Management (SU08),
Device Certification and Enrollment (SU09),
Center Maintenance (SU10),
Field Equipment Maintenance (SU11)
National Operations Center of Excellence (NOCoE) provides updates on SPaT Challenge activities in recorded Webinar #7.
The following recommendations were discussed:
Use industry standards when planning DSRC communication links between intersection signal controllers and roadside units (RSU). Field experience shows…
Content type
Date Posted
02/25/2019
Taxonomy (ARC-IT)
Traffic Signal Control (TM03),
Integrated Decision Support and Demand Management (TM09)
Geolocation links
Placing detectors and deploying transit signal priority should be done to maximize benefits for transit vehicles while minimizing delay for other vehicles.
Transit Signal Priority at Two Agencies
The San Francisco Municipal Transportation Agency (SFMTA) uses TSP for both light rail and buses at many intersections in the city. TSP systems used in San…
Content type
Date Posted
02/27/2017
Taxonomy (ARC-IT)
Traffic Signal Control (TM03),
Integrated Decision Support and Demand Management (TM09),
Transit Signal Priority (PT09)
Geolocation links
Verify that proposed innovations and technologies will operate as advertised.
Managing Traffic During Construction: The Utah DOT I-15 CORE Project Experience
This report highlighted the use of work zone ITS during the I-15 Corridor Expansion (I-15 CORE) project along a 24-…
Content type
Date Posted
01/23/2015
Taxonomy (ARC-IT)
Work Zone Management (MC06),
Traffic Incident Management System (TM08),
Reduced Speed Zone Warning / Lane Closure (VS09)
Geolocation links
Make traveler information systems at tourist attractions more useful by targeting tourists in marketing and promotion efforts and orienting user interfaces to tourists.
Based on the findings of the study, the following recommendations are made to current and future traveler information system operators and their partners:
Make traveler information systems more…
Content type
Date Posted
03/30/2010
Deploy side object detection systems for transit buses that have proven effectiveness in transit operating environments and been accepted by transit operators.
An independent evaluation of a Side Object Detection System (SODS) for transit buses analyzed quantitative and qualitative data to determine its Return on Investment and the extent of operator…
Content type
Date Posted
02/15/2010
Proactively establish working relationships with all partner stakeholder groups.
The significant lesson learned from the deployment is the importance of the working relationships that UDOT and other State and local/municipal agencies have developed. UDOT was proactive in working…
Content type
Date Posted
10/06/2008
Geolocation links
Plan your system to accommodate future expansion.
A key to the success of the CommuterLink Expansion has been that the system is designed to accommodate future expansion and added functionality. Key lessons learned from the CommuterLink Expansion…
Content type
Date Posted
10/06/2008
Geolocation links
Consider potential system enhancements to meet heavy demand.
ITS system enhancements can help agencies meet potential heavy transportation demand. Overall, the Salt Lake City system performed well given the extreme demands of the 2002 Winter Olympics. It is…
Content type
Date Posted
09/16/2005
Taxonomy (ARC-IT)
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09),
Broadcast Traveler Information (TI01),
Traffic Incident Management System (TM08),
Infrastructure Monitoring (MC09),
Regional Traffic Management (TM07)
Geolocation links
Involve agency staff in the software development process by co-locating them with the development team.
One of the major themes that arose in the discussions with UDOT staff was the need for better visibility into the design and development process of the CommuterLink software enhancements. What began…
Content type
Date Posted
09/16/2005
Taxonomy (ARC-IT)
Regional Traffic Management (TM07)
Geolocation links
Standardize the system environment.
Standardize the system environment.
With a system deployed over the course of many years, one of the challenges is how to incorporate advancements in technology without ending up chasing…
Content type
Date Posted
09/16/2005
Taxonomy (ARC-IT)
Regional Traffic Management (TM07)
Geolocation links
Design the 511 system to handle the surge in call volume during major events.
Experience from early deployers has found that the majority of 511 system usage will be driven by specific major events. These events will most likely be weather related, but they could also include…
Content type
Date Posted
09/16/2005
Taxonomy (ARC-IT)
Personalized Traveler Information (TI02),
Broadcast Traveler Information (TI01),
Travel Services Information and Reservation (TI09),
Integrated Decision Support and Demand Management (TM09)
Geolocation links
Create a strong System Manager role to focus accountability and clarify roles and responsibilities with multiple contractors.
Create a strong System Manager role to focus accountability and clarify roles and responsibilities with multiple contractors.
Many of the issues identified during this assessment pointed to the…
Content type
Date Posted
09/16/2005
Geolocation links
Define your agency's expectations of a new system and a robust set of system requirements and then choose the software that meets your requirements.
Choose software that meets your agency's particular requirements.
In particular, think carefully about using software developed for another agency. While the decision to utilize the Georgia DOT (…
Content type
Date Posted
09/16/2005
Taxonomy (ARC-IT)
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09),
Traffic Incident Management System (TM08),
Infrastructure Monitoring (MC09),
Regional Traffic Management (TM07)
Geolocation links
Execute thorough configuration management from the start of an ITS project to help prioritize implementation activities.
Maintaining accurate information about the current configuration was a challenge during the CommuterLink deployment. On a frequent basis, the contractor would add components and integrate new…
Content type
Date Posted
09/16/2005
Geolocation links
Utah DOT Deployed a Dedicated Short-Range Communications Corridor Supporting Transit Signal Priority Controls For a Total Cost of $575,900.
Utah DOT developed a project based on the initial 2016 deployment of a full Dedicated Short-Range Communications (DSRC) corridor that supported transit signal priority (TSP) controls to leverage…
Content type
Made Public Date
09/27/2021
Taxonomy (ARC-IT)
Traffic Signal Control (TM03),
Connected Vehicle Traffic Signal System (TM04),
Transit Signal Priority (PT09)
Geolocation links
The costs of deploying Side Object Detection Systems for transit buses include acquisition, training and maintenance costs.
Side Object Detection Systems (SODS) for transit buses have the potential to improve transit bus safety by helping operators avoid collisions with side objects. Although transit bus collisions are…
Content type
Made Public Date
04/20/2010
The Utah Transit Authority system which coordinates connections and transfers between light rail trains and buses was developed at a cost of $305,000.
In 2002, the Utah Transit Authority (UTA) in Salt Lake City implemented the Connection Protection system to better coordinate passenger transfers between the TRAX light rail trains and buses at 20…
Content type
Made Public Date
03/28/2005
Taxonomy (ARC-IT)
Multi-modal Coordination (PT14),
Transit Connection Protection (PT17),
Transit Vehicle Tracking (PT01)
Geolocation links
The $106 million capital cost for CommuterLink - the Salt Lake City, Utah advanced transportation management system - includes numerous components such as a signal system, ramp metering, traveler information dissemination, traffic surveillance and mo
The Utah CommuterLink Advanced Transportation Management System (ATMS) was developed so that operators in the Utah DOT Traffic Operations Center (TOC) could monitor and manage freeway and arterial…
Content type
Made Public Date
11/05/2004
Taxonomy (ARC-IT)
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09),
Infrastructure-Based Traffic Surveillance (TM01),
Traffic Signal Control (TM03),
Traffic Incident Management System (TM08),
Emissions Monitoring (ST01),
Eco-Traffic Metering (ST03),
Traffic Metering (TM05),
Roadway Service Patrols (PS08),
Maintenance and Construction Activity Coordination (MC08),
Regional Traffic Management (TM07),
Management of Electronic Traffic Regulations (METR) (VS17),
Weather Information Processing and Distribution (WX02)
Geolocation links
INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE
1200 New Jersey Avenue, SE
Washington, DC 20590
