Cross-cutting Issues

Submitted for publication in the proceedings of the 2004 ITS America Annual Meeting and Exposition in San Antonio, Texas April 26 – 29, 2004

Section 7.2.2 International ITS projects

Submitted by: Louise Stewart-Ladewig, German Institute for Economic Research

DIW-Berlin

Department of Energy, Transportation and Environment

Josh Peterman, P.E. - DKS Associates

Rafat Raie, P.E. - City of Walnut Creek, CA

Garland Wong, P.E. - City of Concord, CA

Submitted for presentation at ITSA 2004

This paper updates an earlier paper presented to ITS America in 2000 that described a Caltrans Internet Protocol-based CCTV network being deployed in San Diego County, CA. In this paper, changes to the network architecture from ATM to Gigabit Ethernet technology and from MPEG-1 to H.261 video compression technology are described. The CCTV video distribution system has been considerably simplified in the new architecture and deployment experience has validated the technology selection.

National Engineerign Technology Corporation

California DOT (Caltrans)

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

Several tests, focusing on the effects of the type and composition of cementitious materials, mechanical properties and durability of 60MPa high-strength concrete, were performed to provide experimental data for application of high-strength concrete to prestressed bridges. Mechanical properties, such as compressive strength, modulus of elasticity, splitting tensile strength and flexural strength, were determined. Durability related properties, such as hydration temperature, resistance to chloride-ion penetration, resistance to freezing-thawing, autogenous and drying shrinkages and creep were also determined. The effects of cementitious materials on high-strength concrete properties have been demonstrated. It was verified that 60MPa high-strength concrete revealed better structural and durability performances. Field test construction and performance follow-up survey for prestressed concrete bridge were performed. It was searched out that structural performance of 60MPa HSC members was improved. Published in 2010 by Expressway & Transportation Research Institute of Korea Expressway Corporation.

The Integrated Corridor Traffic Management (ICTM) was a field operational test that was launched in 1994 by public-public and public-private partnerships under the Minnesota Intelligent Transportation Systems (ITS) program known as Guidestar. Costing approximately $9 million over the span of 5 years, the test leveraged an effective institutional framework, advanced technologies in adaptive traffic control, ITS field devices, and tailored incident management strategies to optimize traffic operations within an 8-mile section of the I-494 transportation corridor south of the Twin Cities. The corridor encompassed I-494, four parallel arterial streets, and seven perpendicular arterial streets and crossed five jurisdictional boundaries including Minnesota Department of Transportation, Hennepin County, and the cities of Bloomington, Richfield, and Edina. Despite operational challenges with unstable communications network, ICTM proved valuable institutionally, procedurally, and technically. It resulted in a strong partnership that perceived and addressed the corridor transportation issues as an integral operational unit, provided valuable ITS elements and resources, established the first generation adaptive ramp metering control, improved corridor operations and management, and produced significant deployment best practices and lessons learned. This paper summarizes the ICTM evaluation recommendations, conclusions, best practices, and lessons learned based on findings derived from a variety of quantitative and qualitative data sources.

Booz-Allen & Hamilton

Presented at the 11th ITS Annual Conference and Exposition, June 4-7, 2001 Miami Beach, Florida