Personal Mobility

The purpose of this paper is to develop a method for estimation of reliable path ­travel time
using data obtained from the toll collection system on expressways. The toll collection system
records departure and arrival time stamps as well as the identification numbers of arrival and
destination tollgates for all the individual vehicles traveling between tollgates on expressways.
Two major issues reduce accuracy when estimating path­ travel time between an origin and
destination tollgate using transaction data collected by the toll collection system.

Korea Expressway Corporation

University of Virginia

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

Various driver assistance systems have been developed in recent years. Pattern recognition algorithms, using several kinds of sensors mounted on vehicles, have been applied to detect “overt hazards”. We have been trying hard to expand use of these systems to every vehicle on the road in order to reduce the number of traffic accident fatalities. Furthermore, we think that “covert hazards”, which cannot be detected by the existing systems, are more important than “overt hazards” in urban areas. In this paper, we propose a hierarchical architecture for assessing both types of hazard, combining causal knowledge with stochastic collision prediction capability. The knowledge base evaluates “covert hazards”, using expected risk values as temporal and spatial relationships for each object. The collision prediction takes account of “covert hazards” to calculate the expected risk value. This architecture is examined for several typical scenes, such as a vehicle passing alongside parked cars.

Toyota Central R&D Labs., Inc.

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

River Bridges under Design flood level has the possibility of large-scale disaster by bridge buoyancy and reversing on increasing of water level when it is raining. Therefore it is needed to prepare the measure for preventing damage and securing the safety of drivers on the expressway. This technical paper describes general course of production, installation and operation on flood warning equipment using the Mobile System for solving this problem. We installed this unique equipment on the River Bridge on Yeongchon, Gyeongbuk in 2009. Consequently, we have the efficacy on the expressway’s bridge maintenance by the Mobile System, which checks the increasing water level of River Bridge anywhere. In this paper, we will introduce expressway maintenance managers to more efficient maintenance method with this result. Published in 2010 by Korea Expressway Corporation.

511 New York is a free, comprehensive travel information system geared to meet the
multimodal needs of commuters, long-distance and local travelers, tourists and
commercial-vehicle operators. The up-to-the-minute, comprehensive transportation
information available to customers through this new 511 system strengthens efforts to
improve mobility, allowing people and goods to move efficiently through New York
State. System development required the cooperative integration of existing databases
into a single public source for multi-state, real time and static highway and transit
information, as well as the coordination of information for call transfers, highway data
points, voice recordings, and modal information. The result is a system that promotes
sustainability by providing information that expands transportation choices and
encourages the use of more efficient methods of travel. Users can access a first of its
kind statewide and regional transit trip-planning feature, which includes over sixty
transit operators' schedules and routes; as well as park-and-ride lot info; carpool,
vanpool and rideshare referrals, and bicycling information. The system is a critical,
single-point information source during transportation emergencies. With extensive
outreach to transportation partners and neighboring states and provinces, 511 NY was
successfully deployed at the ITS World Congress in November 2008, only 9 months
after contract execution. Because of the unique, comprehensive multi-modal and
regional nature of 511 NY, innovative federal funding for the system has been
identified.

New York State Department of Transportation

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

Minnesota is one of eight states combining efforts to design, develop and implement 511 using the Condition Acquisition and Reporting System (CARS) as its foundation. Design of the CARS-511 system began in January 2002. Development took place over the next severalmonths and 511 was fully launched in Minnesota on July 1, 2002. Minnesota’s launch also included a new web site – 511mn.org – and consisted of a statewide promotional campaign designed to increase awareness and use of traveler information. Public response has been overwhelming with daily call volumes up to ten times greater than those received with the previous 10-digit toll free road condition number. This paper shares the lessons learned through design and development, implementation, and preliminary evaluation of 511 in Minnesota.

Minnesota DOT

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