Sustainability

Global warming, brought about increased greenhouse gas (GHG) concentrations, is a
significant threat to the planet. Transportation activities account for 28% of all GHG emissions
in the U. S. Recent climate change literature has focused on three primary strategies for reducing
GHG emissions from the surface transportation sector – improving the fuel economy of vehicles,
reducing the carbon content of the fuel used, and decreasing the amount of driving or Vehicles
Miles Traveled (VMT). This paper addresses a fourth strategy – improving the operational
efficiency of the surface transportation network through the implementation of transportation
systems management and operational (TSMO) strategies and the supporting ITS technologies.
The potential benefits of TSMO for reducing GHG emissions and adapting to climate change are
discussed along with several issues (e.g., need for models and analytical tools to estimate GHG
reductions, potential for latent demand resulting from improved roadway efficiency)

Iteris, Inc

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

This paper’s purpose is to illuminate the role that ITS and operational improvements can fulfill in reducing transportation-related GHG. It is organized into an overview of  GCC  and GHG, trends and impacts  of GHG, nation-wide GHG targets , commo n approaches to reduce  transportation -related  GHG, utilization of multi-modal GCC Action Plans, and the potential contribution of  ITS strategies to reducing GHG.

PB Americas, Inc.

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

In January 2006, a full-scale congestion charging system was introduced in
Stockholm, consisting of a time-differentiated cordon charge around the inner city.
The introduction was a trial, followed by a referendum in September 2006, where a
majority votes for keeping the congestion charges. The charges were re-introduced in
August 2007. This paper describes the process, the system design, the reduction in
traffic and congestion that resulted, and the change in public opinion from very
negative to largely positive.

Royal Institute of Technology

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

This paper presents a discussion of how the need for Transport Sustainability might impact
the development of ITS architectures. Both the US National ITS Architecture and the many
regional ITS architectures based upon it, may need to be augmented to account for new or
modified ITS services to address issues raised by Transport Sustainability

Consensus Systems Technologies

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

This  paper  acknowledges  the  important  role  that  fully  integrated  intelligent  vehicles  and systems  will  have  in  managing  travel  demand  in  a  sustainable  way  in  the  future  and  yet recognises that underpinning models will have to be far more sophisticated. It presents details of research which is analysing real-world tailpipe emissions data simultaneously with vehicle characteristics  to  inform  the  future  development  of  improved  relationships  for  modelling driver  behaviour  and  tailpipe  emissions  in  a  micro-simulation  model.  Observed  variation  in tail  pipe  emissions  and  fuel  consumption  over  a  sample  of  forty  drivers  suggests  that significant benefits are achievable. In particular the in-depth analysis of tailpipe emissions of two contrasting drivers presented suggests that benefits of typically 25% reduction in carbon dioxide  through  the  adoption  of  eco  driving  styles  are  achievable.  Once  the  causal relationships,  between  driver  behaviour,  vehicle  operation,  and  tail  pipe  emissions,  are adequately  understood  they  can  be  replicated  within  a  modelling  environment.  When  fully developed  and  implemented  the  fundamental  understanding  of  these  relationships  will facilitate  the  design  of  the  next  generation  of  integrated  Intelligent  Vehicle  and  Transport Systems  technologies,  with  the  potential  to  deliver  significant  fuel  efficiency  and environmental benefits.

Glyn Rhys-Tyler

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