Arizona (22 unique benefit summaries found)

An evaluation of the Arizona 511 telephone traveler information system found that more than 70 percent of users surveyed were satisfied with the enhanced content provided.(30 September 2005)

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

In Arizona, red light cameras reduced the occurrence of severe right-angle and left-turn crashes while the number of rear-end crashes increased.(June 2005)

Evaluation data show that adaptive signal control strategies can improve travel times in comparison to optimized signal timing plans.(2 February 2005)

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 Tucson, Arizona, models indicated adaptive signal control in conjunction with transit signal priority can decrease delay for travelers on main streets by 18.5 percent while decreasing delay for travelers on cross-streets by 28.4 percent.(7-13 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)

In Arizona and Missouri a survey of tourists found that those who used advanced traveler information systems believed the information they received save them time.(30 June 2000)

Traffic signal coordination among two jurisdictions in Arizona resulted in a 6.2 percent increase in vehicle speeds; optimization of the coordinated timing plans was predicted to reduced AM peak period delay by 21 percent.(April 2000)

In Arizona, traffic signal coordination among two jurisdictions contributed to a 1.6 percent reduction in fuel consumption and a 1.2 increase in carbon monoxide emissions. (April 2000)

In Phoenix, Arizona, an evaluation of traveler information provided on cable television found that 29 percent of surveyed respondents thought the traffic channel was useful.(April 2000)

In Phoenix, Arizona, an evaluation of website traveler information found that 16 percent of surveyed respondents thought the web site information was useful.(April 2000)

Crash risk along a corridor in Arizona was reduced by 6.7 percent due to traffic signal coordination among two jurisdictions.(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)

A six year evaluation of freeway ramp metering in Arizona found that that the system reduced sideswipe accidents on the mainline by smoothing traffic flow, but increased rear-end accidents on entrance ramps where vehicles were required to slow down or stop unexpectedly.(August 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)

Based on a travel reduction ordinance requiring Phoenix employers with over 100 employees to reduce single-occupancy commuting trips by 5 percent, the City Public Transport Agency led the development of a Bus Card Plus system and as of 1996, 190 companies participated with a resulting 90 percent of express route fares paid by these bus pass cards.(1996)