Cross-cutting Issues

The advent of Intelligent Transportation Systems has created an issue of how to interface on board ITS devices to a vehicle. One solution to this issue has been to create a Gateway between ITS devices and a vehicle’s electrical systems. The Gateway idea has, in turn, created its own issues. This paper discusses the idea of a Vehicle Gateway Interface (VGI) as one possible derivation of a Gateway, and the operation of a VGI prototype. Also described is the successful implementation of a VGI into a demo vehicle, and the future usage and considerations for a VGI device.

DaimlerChrysler AG

Presented at the 10th ITS Annual Conference and Exposition, May 1-4, 2000 Boston, MA

NEC developed new equipment for communication between cars. We are going to
investigate a wireless link layer and a routing network layer in a field test by the equipment.
In the wireless link layer, new technology of Wireless LAN is used. In the network layer, a
routing protocol Geocast is used. These technologies and the effects for ITS are explained.

ITS Business Promotion Center, NEC Corporation

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

In this paper, a neural network technique for automatic steering control of a highway rotary
snow blower vehicle is presented. The technique is introduced to improve the performance of
the lateral position tracking control of the vehicle. First, Proportional-Derivative (PD)
controllers (one for position, one for heading angle) are developed from the bicycle model of
the vehicle to control the steering angle to follow the desired trajectory. Then a neural
network controller is added to compensate for uncertainties in vehicle dynamics. Simulation
studies of the neural control technique are conducted for the rotary snow blower vehicle
model under virtual snow blowing conditions.

Chungnam National University

University of California–Davis

Presented at the 12th World Congress on Intelligent Transport Systems, November 6-10, 2005, San Francisco, California

Current methods for building dynamic message signs (DMS) include walk-in housing
with ventilation equipment. A new proposed DMS design would move the heatgenerating
power supply and controller to the DMS cabinet at grade. This alternate
method would require a lesser mechanical ventilation system and could be furnished and
installed in a more efficient manner due to the DMS’s lighter weight. In addition to a cost
reduction in the DMS itself, a significant savings would be realized in maintenance due
to the grade-level accessibility of those items that historically require ongoing
maintenance.

Michigan DOT & HNTB Corporation

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

Effective corridor management during non-recurring conditions requires a combination of traffic
diversion to parallel routes, signal timing changes, adjustment of ramp metering rates (when
ramp metering is available) and comprehensive motorist information; actions for which
simulation studies have demonstrated significant benefits. Operations personnel may be
reluctant to use these techniques due to the absence of the comprehensive information needed to assess traffic conditions on potential diversion routes. A new traffic monitoring technology has
been developed that provides accurate measurement of travel times for both freeways and arterial roadways. This technology, which receives signals from Bluetooth equipped devices (cell
phones, PDAs, car radios, etc.) located in passing vehicles, provides the reliable traffic
information needed for effective corridor management.

Center for Advanced Transportation Technology

Traffax Inc

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