THE South Australian Government this week announced plans to build a $14 million multi-level car park at Modbury to provide safe and secure park-and-ride facilities for passengers of Adelaide's most popular public transport corridor, the O-Bahn busway.

Mr Weatherill said the government is wholeheartedly committed to improving Adelaide's public transport system, with a total of $17.1 million being invested in better car parking, bike storage and improved safety and amenities along the O-Bahn network.

Transport and Infrastructure Minister Tom Koutsantonis said the 700-car space facility will increase the park-and-ride capacity adjacent to the Tea Tree Plaza Interchange by 75 per cent, allowing commuters to park undercover 24 hours a day, seven days a week.

The Minister said the upgraded park-and-ride facilities at the Tea Tree Plaza Interchange in Modbury are expected to meet the predicted increase in commuter demand until 2021 and alleviate commuter car parking congestion in surrounding residential streets.

The Parliamentary Public Works Committee is this week considering the proposed works for the car park, which includes:

• Capacity to allow commuters to pay for parking using the Metrocard system when exiting;
• Construction of a disability compliant access path between the Interchange and car park;
• Inclusion of a lift and stairs to provide access between each level;
• Monitored security system and lighting on each level with lighting around the perimeter;
• Energy efficient design principles and stormwater reticulation; and
• Four motorcycle spaces and 14 spaces for people with disabilities.

Ancillary works include upgrading the O-Bahn Access Road to safely accommodate vehicle access to the car park and the movement of buses entering and exiting the Interchange. Smart Road will also be upgraded to accommodate additional traffic on the access road.

Construction is expected to commence on the new facility this month and be completed by the end of the year.