Knowledge Resources

Deploying ITS transit technologies, such as CAD/AVL and traveler information services, to coordinate community transportation services for the transportation-disadvantaged improved non-Medicaid demand response trips by 18 percent and non-emergency Medicaid response trips by 40 percent.(2011)

Improve passenger information accuracy and reduce redundant hardware without overwhemling communications capacity, by integrating adaptive traffic signal priorty and dynamic passenger information systems into existing AVL/ACS systems on transit vehicles.(August 2011)

Transit operations decision support systems (TODSS) reduce false and low priority incident reports sent to dispatchers by 60 percent, allowing dispatchers to focus on higher priority incidents.(February 2010)

Thirty percent of commuters would like to see an expansion of the Automated Parking Information System (APIS) that provides heavy-rail commuters with station parking availability information at en-route roadside locations.(December 2010)

Implementing Integrated Corridor Management (ICM) strategies on the U.S. 75 corridor in Dallas, Texas produced an estimated benefit-to-cost ratio of 20.4:1.(September 2010)

Forty-five percent reduction in complaints by paratransit riders, 50 percent less missed trips due to mechanical problems, and a new trip planning tool for fixed-route riders introduced as part of ITS deployment in Reno.(May 2010)

Overtime hours for drivers reduced and no staff increase necessary to handle over 10 percent increase in transit ridership over six years.(May 2010)

Cameras on buses and in facilites improve rider and driver sense of security and reduce insurance claims paid to passengers, while scheduling software saved $1 million in labor costs.(December 16, 2009)

Data archive warehousing pays for itself in less than 1.4 years and scheduling software saves almost four weeks per year for operations planners.(12/01//2009)

Two thirds of bus tracking website users said they used transit more frequently because of the availability of real-time information.(12/01//2009)

Changeable Message Signs in the Bay Area that displayed highway and transit trip times and departure times for the next train influenced 1.6 percent of motorists to switch to transit when the time savings was less than 15 minutes, and 7.9 percent of motorists to switch to transit when the time savings was greater than 20 minutes.(September 2009)

Implementation of ITS with AVL, real-time passenger information, and electronic fare media in a mid-sized transit system resulted in a minimum 3.9:1 benefit/cost ratio.(July 2009)

Integrated Corridor Management (ICM) strategies that promote integration among freeways, arterials, and transit systems can help balance traffic flow and enhance corridor performance; simulation models indicate benefit-to-cost ratios for combined strategies range from 7:1 to 25:1.(2009)

A personalized travel planning system helps commuters choose environmentally friendly routes and modes; reduces carbon dioxide emissions by 20 percent.(16-20 November 2008.)

Increasing integration between AVL systems, components, and interfaces has improved the ability of transit agencies to collect data on location and schedule adherence; support operational control, service restoration, and planning activities.(2008)

Transit operators and dispatchers for the South Lake Tahoe Coordinated Transit System (CTS) are generally satisfied with the new system deployed and feel that it can provide good capabilities for future service expansion.(4/14/2006)

Implementation of Real-time Customer Information System leads to better customer service; fewer customer inquires; and better access for persons with disabilities.(March 2003)

Implementation of radio system combined with AVL/MDT technology leads to increase in trip productivity and better vehicle maintenance in a large service area with low population density.(March 2003)

Arrival predictions make customers think transit service has improved. Perceived wait times in London dropped from 11.9 to 8.6 minutes due to the Countdown System.(2003)

Users of the Advanced Traveler Information System in Seattle, Washington were satisfied with the information on freeway and transit conditions provided via Web sites and a Traffic TV service.(30 May 2000)

Modeling performed as part of an evaluation of nine ITS implementation projects in San Antonio, Texas indicated that integrating DMS, incident management, and arterial traffic control systems could reduce delay by 5.9 percent.(May 2000)

Evaluation of freeway DMS integrated with incident management in San Antonio, Texas, found fuel consumption reduced by 1.2 percent; integrating the DMS with arterial traffic control systems could save 1.4 percent. (May 2000)

Modeling performed as part of an evaluation of nine ITS implementation projects in San Antonio, Texas indicated that users of an improved traveler information web site would receive annual benefits of a 5.4 percent reduction in delay.(May 2000)

Modeling performed as part of an evaluation of nine ITS implementation projects in San Antonio, Texas indicated that drivers of vehicles with in-vehicle navigation devices could experience an 8.1 percent reduction in delay.(May 2000)

In San Antonio, Texas, 60 percent of drivers of transit vehicles equipped with in-vehicle navigation devices reported that they saved time and felt safer.(May 2000)

Evaluation indicated that integrating DMS and incident management systems could reduce crashes by 2.8 percent, and that integrating DMS and arterial traffic control systems could decrease crashes by 2 percent, in San Antonio, Texas.(May 2000)

In San Antonio, Texas, focus group participants felt that DMS were a reliable source of traffic information.(May 2000)

In San Antonio, Texas, usage of a traveler information Web site increased at a rate of 19 percent per year and spiked during severe weather events.(May 2000)

In 1999, a study in Seattle, Washington indicated that participants who used traveler information devices including wrist watches, in-vehicle components, and portable computers found the information was useful for making travel decisions.(5 January 1999)

In 1995, analysis of the TravLink test in the Minneapolis area found that slightly more than one access per participant per week.(November 1995)

Analysis of the Los Angeles Smart Traveler project that deployed a small number of information kiosks found that the number of daily accesses to the system ranged from 20 to 100 in a 20-hour day.(22-28 January 1995)

Evaluations of the QUARTET PLUS and TABASCO Projects in Europe found that transit signal priority reduced travel time for transit vehicles by 5 to 15 percent.(1994-1998)

In Europe, ITS evaluation reports show that electronic toll collection can decrease traffic volumes by up to 17 percent.(1994-1998)

In Glasglow, Scotland, ITS evaluation reports show that ramp metering can improve freeway capacity by 5 to 13 percent.(1994-1998)

In Europe, a centralized and coordinated paratransit system resulted in a 2 to 3 percent annual decrease in the cost to provide paratransit services.(1994-1998)

In Paris, France, incident management resulted in a nine-minute reduction in response time(1994-1998)

In Europe, ITS studies found customer satisfaction with traveler information delivered via portable electronic devices, public access terminals, Internet web sites, and in-vehicle navigation devices ranged from 50 to 95 percent. (1994-1998)