Cross-cutting Issues

The Georgia Department of Transportation (GDOT) Towing and Recovery Incentive Program (TRIP) was developed to provide monetary incentives to qualified towing operators for the quick clearance of large commercial vehicle incidents. This study evaluated the benefits and costs of the program from its inception in 2007 through the first two years of use (2008 and 2009). The results concluded overall program costs of $835,000, program benefits of $ 9,154,430.63 and a benefit to cost ratio of 10.96 to 1.

PBS&J

Georgia DOT

Presented at the 18th World Congress on ITS, October 2011, Orlando, Florida

Through funding and guidance from the I-95 Corridor Coalition and its member agencies, the University of Maryland Center for Advanced Transportation Technology Laboratory (CATT Lab) has developed a Statewide Mobility Measures Visualization System that is capable of displaying interactive performance measures at the state, corridor, and segment levels.  The system employs a combination of vehicle probe, incident, event, and construction data from multiple state DOTs throughout thousands of miles or interstates and arterials along the I-95 Corridor from New York down to Florida.  The vehicle probe data referenced in this project is collected, analyzed, and archived at 1-minute intervals.  The resulting web-based, interactive performance measures tool represents a monumental leap forward in both technology and capabilities for DOTs, MPOs, and researchers alike—making important use of blended private sector probe data and public sector incident information to facilitate the rapid analysis and generation of easily understandable performance measures that were previously difficult and even impossible to calculate.    

University of Maryland

I-95 Corridor Coalition

Presented at the 18th World Congress on ITS, October 2011, Orlando, Florida

In the current economical climate where budgets on all levels of government, especially on the state level, are tight, tolling agencies and toll road operators are focusing on lower operational costs, increasing electronic customer penetration, providing added values to customer base, operating high-performing and accurate toll systems with proper accountability, and more importantly; providing a road system focused on safety. This role often means that toll agencies are facing higher pressure through increased revenue goals and also more public scrutiny on their efficiency than before. Many agencies across the country have reacted to these and other developments by leveraging the benefits of a toll road system to the travelling public. As a result of this development, reducing the leakage of toll collection systems is an important element of operating a fiduciary responsible road tolling system. This presentation aims to demonstrate that the choice of the right technology on the road side has a direct impact on the total cost of ownership of toll collection systems. Giving agencies an opportunity to decrease that total cost of ownership without reducing the collected toll revenue is an important capability of advanced and high-performing technologies. 

Kapsch TrafficCom

Presented at the 18th World Congress on ITS, October 2011, Orlando, Florida

The 95 Express Lanes in Miami-Dade County have been in operation since December 2008. This

project involved the conversion of a single high occupancy vehicle lane in both directions to two

high occupancy tolls lanes in both directions with dynamic pricing. A portion of the toll revenues

is used to fund operations of the 95 Express Bus Service, which is composed of four routes that

provide service between Broward County, northern Miami-Dade County, and downtown Miami.

The 95 Express Bus Service has benefitted from the HOV to HOT conversion in improved travel

times and on-time performance. It has attracted a large percentage of choice riders, and ridership

has grown despite rising unemployment in Miami-Dade County. On-board transit surveys

revealed that the 95 Express Lanes influenced riders’ decisions to take transit.

Center for Urban Transportation Research

Presented at the 18th World Congress on ITS, October 2011, Orlando, Florida

Cooperative adaptive cruise control (CACC) enables drivers to follow each other at

shorter gaps than autonomous ACC, and our recent field test demonstrated that drivers are

favorably inclined toward using those shorter gaps. In this paper, we simulate multi-lane

highway traffic conditions with a variety of combinations of conventional manual driving,

ACC, “here I am” and CACC vehicles to determine the maximum effective capacity

achievable in each scenario. The distribution of gaps used by the ACC and CACC

vehicles in the simulations is matched to the distribution of gaps that drivers from the

general public selected in our field test, providing the most realistic estimates to date of

the potential highway capacity benefits of ACC and CACC.

University of California, Berkeley

Presented at the 18th World Congress on ITS, October 2011, Orlando, Florida