Cross-cutting Issues

This paper will provide a look back and a look forward of the 511 program in the
United States. The paper will describe management activities, performance measures and actual
deployment experiences from across the country. In addition a special focus will be presented as
the 511 Coalition seeks to reach 50% of the population with 511 services in 2005.

American Association of State Highway and Transportation Officials

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

This report, prepared by the Florida Department of Transportation (FDOT) District IV ITS Office, is the second annual report for the SMART (“Systems Management for Advanced Roadway Technologies") SunGuide Transportation Management Center (TMC) located in Fort Lauderdale, Florida. This annual report reviews the performance of the ITS operations and summarizes the return-on-investment or benefit/cost ratio outcome that was calculated for 2005.

Adaptive traffic control systems (ATCS) have become popular in recent years as the

technology has improved and product vendors have made deployment and operations easier

and more reliable. Unfortunately, the features and capabilities of ATCS are still

misunderstood by many traffic engineers and system operators. The very term “adaptive

control” is used to describe systems that may, in fact, provide measureable benefits over

conventional fixed time or actuated control, but are not actually true adaptive control

systems. This paper describes the widely accepted concept of “true” adaptive traffic control

and compares how it is supported by several of the market leading vendors’ products.

Telvent Transportation North America

Telvent - Trafico y Transporte

Presented at the 18th World Congress on ITS, October 2011, Orlando, Florida

The San Diego Intermodal Transportation Management System (IMTMS) is a regional project consisting of the integration of four transportation modal management systems: the Intermodal Advanced Traffic Management System (ATMSi) for freeway management, the Regional Arterial Management System, Transit Management System, InterCAD Incident Management System and Advanced Traveler Information Management System for Information Service Provider dissemination. A separate project for event management, called the Mission Valley ATMS/ATIS System provides a data and video Intertie between the City of San Diego and Caltrans and will fall under the regional IMTMS umbrella. A regional communications network will be built (and leased) to support connection of the modal management systems. Systems connecting to this regional network will conform to the Common Object Request Broker Architecture specifications being developed for the Southern California Priority Corridor Showcase network. These specifications also conform to National ITS Architecture standards for Center to Center communications. Part of the specifications include an Interface Definition Language, a lingua franca for describing transportation objects in a common format across dissimilar systems.

National Engineering Technology Corporation

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

As ITS projects increasingly move into the deployment stage, the issue of software and system development practices becomes ever more critical. Virtually every transportation management system is now dependent on mission critical software for its proper functioning. Problems with large (and even medium scale) software development projects are legendary, running the gamut from cost overruns and major schedule delays, to the more critical issues of system safety, reliability and security. As a project advances further into its life cycle, solutions for design and coding errors become more complex and therefore more costly. The sad fact is that although these errors are largely preventable through the art of requirements management, this art is too often misunderstood and misapplied. Worse, in some cases there is no recognizable effort that is applied towards this key step of systems engineering.

National Engineering Technology Corporation

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