Monash-CityLink-West Gate upgrade project: coordinated freeway ramp signals on the M1: “sustaining freeway performance”

For too long Australia’s congested urban freeway networks have been left unmanaged resulting in poor freeway operational performance at volumes well below that which these expensive facilities were predicted and designed to provide. Most urban freeway projects were built on the expectation that they would carry in excess of 2000 vehicles per hour per lane during the peak periods, however, during peak periods many of these facilities struggle delivering much more than 1400-1600 vehicle per hour per lane. It is imperative, therefore, that road managers (both public and private) during periods of high demand, operate their road assets at the highest level of productivity in order to ensure their customers are receiving the best possible level of service and as road managers we are obtaining the best possible return on the investment in road infrastructure. This paper will look specifically at the application of road design elements, (freeway and ramp) choice of control system, supporting traveller information systems, operation of ramp signals and the measurement of performance that when applied to existing or new urban freeway systems will bring about sustained freeway operation at performance levels close to those predicted in business cases and described in traffic engineering text books. This approach has been applied to the design and operation of the Monash-City Link-West Gate (M1) Upgrade Project in Melbourne, Victoria, and the preliminary results have exceeded expectations. This project included the installation of coordinated freeway ramp signals (CFRS) at 62 sites along the 75km corridor.


  • English

Media Info

  • Pagination: 15p

Subject/Index Terms

Filing Info

  • Accession Number: 01383341
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 187659263X
  • Files: ATRI
  • Created Date: Aug 22 2012 2:04PM