The City of Onkaparinga is hoping traffic management workers and increased signage will help avoid an Australia Day repeat of recent traffic chaos at the access points to Aldinga, Silver Sands and Sellicks beaches.

Australia Day is traditionally one of the busiest times for local beaches and the maximum number of cars allowed on the sand is usually reached by early or mid-morning, creating a backlog of traffic.

The traffic congestion and the amount of rubbish left behind by beach users has been a hot topic on local social media groups.

Onkaparinga Councillor Richard Peat told one group he has been contacted by many Aldinga residents about the traffic issues during the tourist season and has been working with council staff to try and ease the situation.

He says council have begun placing electronic signs at the roadways leading to the beaches and at ramp entrances to alert motorists if the beach is already full.

Council is also using private contractors Adelaide Traffic Control to manage the traffic as it moves on and off the beaches and to close access when the maximum number of cars is reached.

It is hoped this will alleviate traffic congestion along the Esplanade and other roads in the area.

Councillor Peat also says council is also working with SAPOL on their traffic management plan for Australia Day.

If the day is as busy as expected SAPOL can adjust message boards along the Southern Expressway to notify traffic that beaches are already at capacity.

The forecast for Adelaide for Australia Day is 31 degrees, humid and partly cloudy with light winds.

Vehicles are allowed on the Aldinga, Moana, Sellicks and Silver Sands beaches between 5.30am and midnight.  Drivers must have a current beach permit or pay an $8 vehicle access fee when the ramps are monitored.

Beach permits are available free to owners and tenants in the Onkaparinga Council area.