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Road Safety and Infrastructure

240km/h for trucks and buses for entire descent to get them into the right gear and left lane for some or all of the descent (& review the speed of light vehicles)

(CR10) Speed limit
reduction 40km/h Heavy Vehicle & 80km/h Light Vehicles.
Industry has been briefed on SE Freeway traffic modelling outcomes highlighting that, "at this time, there are concerns related to queuing, congestion and bus service impacts that could occur as a direct result of a lower speed limit."

In 2015, Industry briefings took place with SARTA, Livestock Transporters and Corey Wingard MP (Opposition Spokesperson).

Investigations are continuing.
short term
3Improve signage along South East Freeway and Dukes Highway.

(CR11) Add the words "Heavy Penalties apply" to the signage that trucks and buses must use low gear.
Installation of new signs and pavement marking was completed in December 2014.

On the 18th March 2015, flashing amber lights above the last decent warning sign were activated.

On the 23 March 2015, advance warning signs advising of the steep decent were installed at 7km and 10km prior to the descent.
As per Option 1, ARR108 promotional signs will be installed at the following three HV rest areas on and approaching the SE Freeway; Mt Barker, Tintinara and Tailem Bend. "Penalties Apply" is included on the sign artwork.
short term
5Intersection upgrade at Cross Road / Portrush Road and Glen Osmond Road.

A range of 'hook turn' options have been considered and have raised concerns due to potential significant traffic delays and its ineffectiveness to address a "run away" vehicle situation.

Investigations are continuing.

long term
9Construction of a third Safety Ramp

(CR8) Consideration be given of feasibility and desirability for a third safety ramp

A number of options for a new Safety Ramp treatment have been considered.

Crash simulation modelling for the Side Entry Safety Ramp proposal has been prepared by an expert from the Department of Transport and Main Roads, Queensland to determine the effectiveness of such a facility. Crash simulation modelling for the side entry ramp included half and also a full width entry options for various heavy vehicle loads and types. The crash simulation modelling for the full side entry ramp, along with some of the key risks that have been identified with this option will be presented to the Industry for feedback at the SA Heavy Vehicle Industry Forum on the 11 June 2015.

long term
11Intelligent Information System that can detect out of control trucks and manage through on-road information and links to Traffic Management Centre

(CR16)  Investigate ITS devices for speeding trucks to use safety ramps.

Work is underway to define system functional requirements, including those for before trucks descend.  These system functions are currently being considered within the context of other ITS projects along the SE Freeway. This will provide greater clarity in how best to implement and deliver this option in a timely and integrated manner.

The highest priority function has been identified as devices for speeding trucks to use safety ramps. Work will focus on this function as the first stage of the Intelligent Information System and the initial procurement planning has now commenced.

The above includes consideration of CR16 for speeding trucks to be directed by signage to use safety ramp.

long term
13"On road presence of inspections of Heavy Vehicles (in partnership with SAPOL and increased operation of Monteith Station."Monteith Station continues to be periodically operated by DIT officers.medium term
14Implement a Safety Stopping Station before the descent into Adelaide

(CR17) Create a mandatory stopping station between tunnels and 2nd safety ramp.

Two concepts plans have been completed for a safety stopping station.  Internal technical review conducted, issues identified and further investigation are currently being undertaken.

Modelling that tested the locations below the tunnels identified by the Coroner have been completed. The location was subsequently discounted due to it requiring an area large enough to accommodate the estimated 240 heavy vehicles during the peak period.

Investigations are continuing.

long term
15Change the name of 'Arrester Bed'  to 'Safety Ramp'This Ranked Option is now complete.short term
16CB radio break-in message

Significant issues with this option were raised at the Industry Stakeholder Workshop in October 2014. An alternative approach is now being considered.

On 2 June, the department presented to the Australian Traffic and Traveller Information Forum encouraging inclusion of long steep descent (ARR108) as a point of interest (POI) in mapping databases.

medium term
18Weigh-in-motion (WIM) to allocated speeds for particular vehiclesWork to define system functional requirements is being considered within option 11.

The outcome of Ranked Option 14 (Safety Stopping Station) is closely related.
long term
19Point to Point average speed cameras along the SE Freeway descent for trucks and buses.The required camera and legislation enhancements can not be made until a long term strategy is developed regarding the descent speed limits (Ranked Option 2) and lane usage and vehicle categories are finalised.medium term
22All trucks and buses must exit at Crafers, negotiate roundabout and re-enter FreewayInvestigations are indicating that this option may best be superseded by other options such as 14 – safety stopping station.medium term