Minnesota (41 unique benefit summaries found)

In St. Paul, Minnesota, an advanced parking management system reduced travel times by nine percent.(January 2007)

In Minneapolis, Minnesota, survey data collected prior to the deployment of MnPASS Express Lanes (HOT lanes) on I-394 examined travelers' willingness-to-pay to avoid congestion. (22-26 January 2006)

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

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

During lane closures in the Minneapolis/St. Paul region a dynamic late merge system reduced confusion and aggressive driving, decreased queue lengths, and reduced congestion.(28 December 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)

Automatic anti-icing systems on bridges reduced crashes by 25 to 100 percent and benefit-to-cost ratios ranged from 1.8:1 to 3.4:1.(August 2003)

In Minneapolis-St.Paul, an evaluation of the effectiveness of ramp meters on four test corridors showed that freeway travel speeds decreased 5 to 10 percent and freeway travel times increased 5 to 10 percent between 2000 and 2001.(10 May 2002)

In Minneapolis-St.Paul, an evaluation of the effectiveness of ramp meters on four test corridors showed that the number of commuters who supported a complete ramp meter shutdown declined significantly from 21 percent in 2000 to about 14 percent in 2001.(10 May 2002)

In Minneapolis-St.Paul, an evaluation of the effectiveness of ramp meters on four test corridors showed that the number of crashes recorded for the interim period with reduced ramp metering capacity was 15 percent higher that the average number of crashes measured for the previous fully metered periods. (10 May 2002)

A simulation study in Minneapolis-St. Paul estimated that ramp metering saved 2 to 55 percent of the fuel expended at each ramp.( 13-17 January 2002)

A simulation study in Minneapolis-St. Paul estimated that ramp metering decreased total system travel time by 6 to16 percent and increased average mainline speeds by 13 to 26 percent.( 13-17 January 2002)

When the ramp metering system on Minneapolis-St. Paul freeways was shut down, speeds fell by seven percent. (February 2001)

When the ramp metering system on Minneapolis-St. Paul freeways was deactivated, crash frequency increased by 26 percent.(February 2001)

Most drivers believed that traffic conditions worsened when the Minneapolis-St. Paul ramp metering system was shut down and 80 percent supported reactivation.(February 2001)

Volume decreased by 9 percent and peak period throughput was reduced by 14 percent when the ramp metering system on Minneapolis-St. Paul freeways was deactivated.(February 2001)

Net annual vehicle emissions increased by 1,160 tons and fuel consumption decreased by 5.5 million gallons when the ramp metering system on Minneapolis-St. Paul freeways was shut down.(February 2001)

A study found that the benefit-to-cost ratio of the Minneapolis-St. Paul ramp metering system was 15:1.(February 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)

During a 1998 snow storm, Mn/DOT reduced roadway clearance costs by 18 percent on I-90 by activating a freeway gate closure system to limit vehicle interference and reduce snow compaction problems that increase work for plows.(October 1999)

An analysis of the I-90 ramp closure system in Minnesota found benefit-cost ratios ranging from 0.13:1 to 3:1 with varying estimates of crash and delay reductions.(October 1999)

Weather-related traffic signal timing along a Minneapolis/St. Paul corridor reduced vehicle delay nearly eight percent and vehicle stops by over five percent.(1999)

Software supporting oversize/overweight permitting enables staff reduction from 21 to 9, statewide. (July 1998)

There were 32 accidents along a transitway at the University of Minnesota before transit priority lights were installed, while no accidents were reported after installation of the lights.(2 February 1998)

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

In the St. Paul, Minnesota region ramp metering has increased throughput by 30 percent and increased peak period speeds by 60 percent.(November 1997)

In Minneapolis, a traffic incident information pager service was used daily by 65 percent of participants, and at least once-per-week by 88 percent of participants; users decided to changed travel routes in 42 percent of the situations.(10 June 1997)

In Minneapolis, a traffic incident information pager service was used daily by 65 percent of participants, and used once-per-week or more by 88 percent of participants; users decided to changed travel routes in 42 percent of the situations.(10 June 1997)

In the Minneapolis/St. Paul, traffic speed data collected at two interstate work zones showed that when portable traffic management systems were deployed, work zone traffic volumes increased 4 to 7 percent during peak periods.(May 1997)

In the Minneapolis/St. Paul, a motorist survey found 61% of drivers who experienced a portable traffic management system at a work zone felt more informed about traffic conditions than at other work zones.(May 1997)

In the Minneapolis/St. Paul, a portable traffic management system installed at two interstate work zones improved safety by slowing approaching vehicles by 9 mi/hr and reducing speed variability by 70 percent. (May 1997)

In Albuquerque, New Mexico, an ambulance provider increased its efficiency by 10 to 15 percent using AVL/CAD to improve route guidance.(January 1997)

In Minnesota, a survey of travelers indicated that Smart Work Zone warning signs were accurate, useful, and gave travelers the information they needed.(January 1997)

In Philadelphia, the Traffic and Incident Management System (TIMS) on I-95 contributed to a 40 percent decrease in freeway incidents and reduced the incident-severity rate by 8 percent.(January 1997)

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

Highway Helper Summary Report - Twin Cities Metro Area(July 1994)

Several carriers reported that on-board monitoring systems enable carriers to increase loaded mileage by 9 to 16 percent, decrease operating costs, and save drivers time in reporting their status to dispatchers.(January 1992)

The emergency vehicle crash rate fell by 71 percent after deployment of emergency vehicle signal preemption systems in St. Paul, Minnesota.(19 August 1977)