California (57 unique benefit summaries found)

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)

The Bay Area Rapid Transit (BART) smart parking system field test increased BART trips and resulted in an average of 9.7 fewer vehicle miles traveled and decreased the average commute time by 2.6 minutes.(1 August 2007)

Outside San Francisco, a transit-based smart parking system contributed to an increase in transit mode share, a decrease in commute time and a reduction in total VMT.(December 2006. )

Freeway Service Patrol: "About FSP", and "Facts at a Glance" (Web Site)(22 June 2006)

An automated work zone information system deployed on a California interstate greatly reduced traffic demand through the work zone resulting in a maximum average peak delay that was 50 percent lower than expected.(22-26 January 2006)

Customer satisfaction with 511 ranged from 68 to 92 percent in four deployments studied. (September 2005)

In California, public support for variable tolling on SR91 was initially low, but after 18 months of operations; nearly 75 percent of the commuting public expressed approval of virtually all aspects of the Express Lanes program.(June 2005)

Modeling data indicated that an automated work zone information system deployed on I-5 near Los Angeles contributed to a 4.3 percent increase in diversions and an 81 percent increase in average network speed.(9-13 January 2005)

An automated work zone information system deployed near Los Angeles, California, reduced freeway delay by 46 percent.(9-13 January 2005)

Deployment experiences document the importance of traveler information and list top sources of traveler information.(2005)

In Los Angeles, a survey of motorists who experienced an automated work zone information system found that 78 percent of respondents changed their route based on the information provided.(2005)

Freeway lane reversal improved traffic volumes by 44 percent following South Carolina hurricane(2005)

An automated work zone information system deployed near Los Angeles effectively diverted traffic to alternate routes during periods of congestion.(2005)

Signal retiming projects in several U.S. and Canadian cities decreased delay by 13 to 94 percent, and improved travel times by 7 to 25 percent.(April 2004)

Signal retiming projects in several U.S. and Canadian cities reduced fuel consumption by 2 to 9 percent. (April 2004)

Intersection collision avoidance systems deployed at intersections with high crash frequencies or high rates of severe injury are projected to recoup initial costs within one year, through a reduction in crashes.(September 2003)

Electronic supply chain manifest systems, reduce the amount of time and paperwork required to transfer load and can improve operational efficiencies for shippers/receivers, trucking companies, and air cargo carriers.(December 2002)

In Los Angeles, California, the installation of a "second train coming" warning system at a light rail transit grade crossing reduced risky behavior of pedestrians and surveyed pedestrians felt that safety was improved.(November 2002)

A before-and-after study found that transit patrons experienced a smoother and more comfortable ride when a transit signal priority system was implemented in Seattle, Washington. (January 2002)

Evaluation of several transit signal priority systems found decreased bus travel time variability by 35 percent, lowered bus travel times by 6 to 27 percent, reduced AM peak intersection delay by 13 percent, and decreased signal-related bus stops by 50 percent.(January 2002)

Simulations indicated that using a decision support tool to select alternative traffic control plans during non-recurring congestion in the Disney Land area of Anaheim, California could reduce travel time by 2 to 29 percent and decrease stop time by 15 to 56 percent. (December 2001)

Automated pedestrian detection at signalized intersections tested in three U.S. cities reduced the number of pedestrians who began crossing during the steady DON’T WALK signal by 81 percent.(August 2001)

In Los Angeles, adaptive signal control systems improved travel time by 13 percent, decreased stops by 31 percent, and reduced delay by 21 percent.(July 2001)

In Los Angeles, transit signal priority reduced total transit travel time by approximately 25 percent.(July 2001)

The estimated benefit-to-cost ratio for optimizing signal timing plans, coordinating traffic signal control, and implementing adaptive signal control in California was 17:1.(7-11 January 2001)

Automated red light enforcement at 11 intersections in Oxnard, California reduced crashes by 7 percent, decreased right-angle crashes by 32 percent, lowered injury crashes by 29 percent, and reduced right-angle injury crashes by 68 percent.(7-11 January 2001)

Optimizing signal timing plans, coordinating traffic signal control, and implementing adaptive signal control in California reduced travel time by 7.4 to 11.4 percent, decreased delay by 16.5 to 24.9 percent, and reduced stops by 17 to 27 percent.(7-11 January 2001)

Optimized signal timing plans, coordinated traffic signal control, and adaptive signal control reduced fuel use by 7.8 percent in California.(7-11 January 2001)

Adaptive signal control systems deployed in five metropolitan areas have reduced delay 19 to 44 percent.(December 2000)

Adaptive signal control systems in Los Angeles, Broward County, and Oakland County reduced vehicle stops by 28 to 41 percent (December 2000)

Adaptive signal control may can lower operations and maintenance costs associated with traffic signal retiming; in Minnesota DOT signal technicians indicated that adaptive signal control systems were easy to operate and required minimal maintenance.(December 2000)

Adaptive traffic signal control systems in Los Angeles, Broward County, and Newark decreased travel times by 13 to 25 percent. (December 2000)

Based on the survey results only 9 percent of households were aware of TravInfo, and less than 1 percent of the Bay area commuters who used traveler information used TravInfo.(25 April 2000)

An advanced curve warning system on an interstate route in northern California caused over 68 percent of drivers to reduce their speed. (April 2000)

More than 76 percent of drivers on an interstate route in northern California indicated that messages displayed by an advanced curve warning system were useful.(April 2000)

Automated enforcement systems in Arizona, California, Maryland, and New York have reduced red-light violations by 20 to 60 percent and crashes by 22 to 51 percent. (December 1999)

An automated enforcement systems in California decreased highway-rail grade crossing violations by up to 92 percent.(December 1999)

Evaluation of an automated commercial vehicle safety enforcement system in New South Wales, Australia found that the system had a benefit-to-cost ratio of 2.5:1. (December 1999)

Implementation of an adaptive signal control system in Anaheim, California resulted in travel time changes ranging from a 10 percent decrease to a 15 percent increase. (July 1999)

Vehicle-pedestrian conflicts were reduced by 89 percent in the first half of the crossing and 43 percent in the second half with automated pedestrian detection at intersections in Los Angeles, California; Rochester, New York; and Phoenix, Arizona. (Spring/Summer 1999)

During the initial deployment of electronic toll collection on the Carquinez Bridge (1996-1997) there was an increased number of crashes and personal injuries.(March 1999)

Automated red light enforcement reduced the number of violations by 42 percent at 5 intersections in San Francisco, California. (March 1999)

In California, electronic toll collection on the Carquinez Bridge decreased annual emissions of Carbon monoxide, Nitrogen oxides, and hydrocarbons.(March 1999)

In California, electronic toll collection on the Carquinez Bridge saved 25,193 hours per year by improving traffic movement through the toll facility and reducing the time required to process transactions.(March 1999)

In California, the time saving benefits of electronic toll collection on the Carquinez Bridge saved travelers more than a million dollars per year.(March 1999)

In San Francisco, the TravInfo telephone service had a high level of customer satisfaction with the two highest ranking aspects of TravInfo being convenience (average score = 4.2) and ease of comprehension (average score = 4.3) on a scale of one to five, with five being very satisfied.(12-16 October 1998)

Freeway Services Patrols: A State of the Practice(11-15 January 1998)

Studies in six metropolitan areas of the United States and Australia, automated enforcement systems reduced red light violations by 20 to 60 percent, decreased right-angle crashes by 30 percent, and reduced crash injuries by 10 percent.(August 1997)

In San Jose, California, a paratransit program equipped with AVL/CAD and an automated scheduling and routing system, realized increased ridership, better on-time performance, and a $500,000 reduction in annual operating costs. (March/April 1997)

In San Jose, California, a paratransit driver commented that she was satisfied with a new AVL/CAD scheduling and routing system, and said it was useful for settling disputes concerning on-time performance .(March/April 1997)

Innovations in Transportation and Air Quality: Twelve Exemplary Projects(1996)

In Manchester, UK, transit smart cards that improve data accuracy and reduce data collection costs saved $1.5 million.(September 1995)

Automated enforcement systems have reduced red light violations by 50 to 60 percent at two intersections in Fort Mead, Florida and Jackson, Mississippi.(17 March 1995)

Automated enforcement systems have reduced highway-rail crossing violations by 78 to 92 percent along two corridors in Los Angeles, California.(17 March 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)

A computerized signal control system in Los Angeles, California increased average speed by 16 percent, reduced travel time by 18 percent, decreased vehicle stops by 41 percent, and reduced delay by 44 percent. (June 1994)

Fuel consumption fell by 13 percent and vehicle emissions were reduced by 14 percent due to a computerized signal control system in Los Angeles, California.(June 1994)