Trial Report: Electronic Speed Awareness Sign (eSAS®)

ARROWES Technology Trial Report:

Electronic Speed Awareness Sign (eSAS^®)

• Project: CPB North East Link. An 8-week run of night shifts started on Greensborough Road in Yallambie, Melbourne, Victoria, to install a new underground gas utility pipeline.
• Location: Greensborough Road, Yallambie, Melbourne, Victoria.
• Report by: Jeffrey Roberts, CPB Traffic Manager

Background

Many vehicles were not adhering to the 40km/h temporary speed limit. Our night supervisor puts in the request for the safety risk to be addressed urgently before a serious injury occurred.

Having seen – and been very impressed by – a demo of the ARROWES eSAS^® at the Woolgoolga to Ballina (W2B) Pacific Highway upgrade last year, I knew the eSAS^® could be the solution to our problem.

I had assisted in getting the ARROWES eSTOP^® traffic signals approved by Roads and Maritime Services in NSW in 2019, so I was already very familiar with ARROWES products. Like the eSTOP^®, the eSAS^® is highly portable and could be set up on its tripod and switched on within minutes. This also meant we didn’t need to tow another large trailer display unit to site.

Assisted by Havva Ahmet, Operations Manager at Construct Traffic, within 2 weeks, we had eSAS® units flown down from Queensland. The day the units arrived, they were set up, switched on and had an immediate effect with a great response from the traveling public through the worksite. Our night supervisor said the problem had reduced dramatically. This is the first time the eSAS® has been trialled in Victoria on the tripod at a temporary traffic management site. The trial shows that drivers do adhere to the happy/sad face and multiple messages.

eSAS® results over 5 nights

83% compliance under 40km/h

93% compliance under 45km/h

With thanks to

Lea Ea of ARROWES, Havva Ahmet and Hugo Reid of Construct Traffic, Robert Smith, and Liliana
Moreno and Mathew Abdallah of CPB for assisting in the eSAS^® trial.