Personal Mobility

Historically, autonomous vehicles have been predominantly used in military applications.
There are a growing number of indicators, however, that autonomous vehicles may be used
for on-road driving in the future. For a driverless vehicle to safely navigate on the same
roadways as other driverless vehicles as well as human-driven vehicles, its behavior will need
to be generated appropriately and robustly. For an on-road vehicle, these behaviors primarily
focus on navigation. Autonomous vehicle navigation for on-road driving consists of tasks
ranging from steering and speed control to negotiating complex urban environments with stop
signs, traffic lights, other vehicles, and pedestrians. Southwest Research Institute (SwRI®)
has undertaken the Southwest Safe Transport Initiative (SSTI) aimed at investigating the
development and commercialization of vehicle autonomy as well as vehicle-based telemetry
systems to improve safety and facilitate traffic flow. This paper will discuss the modularized
approach used to perform the navigation and path planning tasks for on-road driving that have
been implemented on the SSTI autonomous vehicle. It includes details on the global route
planning, local path planning, speed profile generation, and a short discussion on planning
paths for lane changing and obstacle avoidance.

Southwest Research Institute

Presented at the ITS America Annual Conference and Exposition, November 16-20, 2008, New York, New York

Transportation agencies need effective ways to inform the traveling public about current road
conditions and to manage congestion. Travel time systems and variable toll pricing systems
are two proven ways to meet these goals. These two systems require similar data, perform
similar calculations to produce correct results and both need to distribute the final
information to motorists on the roadway. Combining the systems makes sense from
technological and operational perspectives. However such a system must be designed
carefully to manage complexity while maintaining data integrity, performance, and
reliability.

Wavetronix LLC

Paper submitted for publication and presentation at the ITS America’s 2009 Annual Meeting and Exposition

Operating agencies and 3rd party wireless service providers in Taiwan, Republic of China (ROC), have been developing a comprehensive traffic information service system covering the urban expressways and arterial transportation facilities. These available traffic information can be used for effective traffic routing and congestion management applications. To support the advanced traveler information service, a "Traffic Data Fusion Process" (TDFP) was developed that is based on both historical and real-time link travel times. This paper describes the design and implementation of automatic computer- assisted procedures or the "Traffic Data Fusion Process," to estimate the updated link-travel-time, select proper incident responses, and construct traffic information messages. The proposed system, currently being developed, can distribute these real-time traffic informations automatically to all users.

Oak Ridge National Laboratory

Presented at the ITS America Annual Conference and Exposition, April 29 –May 2, 2002 Long Beach, California

This paper reports on the performance of advanced traveler information systems (ATIS)during the 2002 Salt Lake CityWinter Olympic Games. This was the first Olympics in the United States with an established Intelligent Transportation System (ITS) deployment in full operation, and the Salt Lake City ITS installation was among the most comprehensive in the nation. This paper presents excerpts from a larger study, commissioned by Utah Department of Transportation (UDOT) and the Federal Highway Administration. The purpose of that larger study was to document and assess the performance of the UDOT advanced traffic management system (ATMS) and advanced traveler information system (ATIS) during the Olympic Games. An additional purpose was to document and assess the results of the Travel Demand Management program created and implemented for the Olympic Games. This paper presents some of the traveler information findings from that larger study, specifically regarding the CommuterLink Website and the 5-1-1 Telephone Service.

 Iteris, Inc.

Presented at the ITS America Annual Conference and Exposition, May 19-22, 2003 Minneapolis, Minnesota

The Advanced Regional Traffic Interactive Management and Information System (ARTIMIS) is a regional traffic management system provided by the Kentucky Transportation Cabinet (KYTC), Ohio Department of Transportation (ODOT), Federal Highway  Administration (FHWA), Ohio-Kentucky-Indiana (OKI) Regional Council of Governments, and the City of Cincinnati. ARTIMIS has two major functions, specifically, Advanced Traffic Management Systems (ATMS) and Advanced Traveler Information Systems (ATIS). The ATIS service, known as SmarTraveler, is but one component of the ATIS function and is hereinafter referred to as the ARTIMIS Traveler Advisory Telephone Service or ARTIMIS TATS.

The following are the overall objectives that this research project was created to meet:

• to assess the overall satisfaction and effectiveness of ARTIMIS TATS;

• to determine the general awareness of ARTIMIS TATS in the regional coverage area;

• to determine the prevalence and preference of accessing the service through the use of

a N11 dialing code, such as 211, versus a seven-digit number; and

• to determine the influence of traveler information on travel behavior.

In order to accomplish these objectives, two surveys were designed and undertaken.

ARTIMIS TATS users were invited to participate in the first survey, by intercepting their calls into the system. The second survey, an awareness survey, was designed as a random-digit dial survey for people in the ARTIMIS coverage area. The results relating to user satisfaction and the effect the system has on travel behavior can be found in a forthcoming paper in Transportation Research Record.

Department of Civil Engineering and Kentucky Transportation Center

Presented at the ITS America Annual Conference and Exposition, June 4-7, 2001 Miami Beach, Florida