Safety

In recent years, safety countermeasures for intersection collisions are being developed. An ongoing research project is being carried out by researchers in California, in which the emphasis is placed on the developments of left-turn crossing-path of collisions at signalized intersections. This paper reports an update on the research activities especially on field data collection, where a combination of sensing technologies are deployed to detect and measure traffic conflict scenarios that are candidate situations for offering warnings to the drivers. This is a continuing effort from earlier investigations when a methodology was developed to extract scenario-specific parameters of interests. An enhanced set of sensing devices are combined and used to acquire more accurate and informative data for the developments of warning algorithms. The outcome of this study will provide valuable inputs for the implementation of intersection safety countermeasures.

University of California at Berkeley

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

Geographic databases such as digital maps, business listings, critical asset catalogs, and real-time road conditions can play a crucial role in transportation-security applications including Homeland Security, asset protection, emergency response, crisis management, and disaster recovery.  Geographic databases can be invaluable in protecting from and responding to natural, accidental, and manmade tragedies.  This paper describes the uses and requirements for geographic databases in all phases of transportation security from planning, preparedness and prevention through disaster response and recovery.  Compatibility among geographic databases used by various agencies involved in transportation security, and the ability of agencies to exchange geographic information in real-time, are critical capabilities in transportation security applications.  Digital maps are evolving in such a way that they no longer contain only static road geometry, street address ranges, and points of interest, but they now also include real-time information such as road conditions (congestion, accidents, roadwork, road weather, etc.), and travel times (historical, current, and forecasts).  Such maps, variously referred to as traffic-linked maps, dynamic maps, real-time maps, or True-Time Maps, will be crucial assets in transportation security.

Tele Atlas

Presented at the ITS America Annual Conference and Exposition, April 26 - 28, 2004 San Antonio, Texas

We describe recent work and a demonstration to intersection collision warning / decision
support that primarily addresses the left turn across path / opposite direction collision
type.   We are currently engineering this approach, to include all facets needed for
implementation:  hardware and software technologies, laboratory and field tests, and in
the end, a field operational test in a real-world setting.  It is this real-world setting which
we emphasize:  we have conducted a demonstration of research in progress that provides
drivers with infrastructure- and vehicle-based alternatives to left turn collision warning.

University of California, Berkeley

Presented at the ITS America Annual Conference and Exposition, April 26 - 28, 2004 San Antonio, Texas

Intersection collisions account for a significant portion of accidents and fatalities on roadways. We are developing a vehicle-to-vehicle cooperative collision warning system as part of our effort to enhance driver ’s awareness of roadway situation and to reduce the accident rate.

Qingfeng Huang, Ronald Miller

Presented at the ITS America Annual Conference and Exposition, April 26 - 28, 2004 San Antonio, Texas