There are 127 at-grade level crossings of the road and rail network in Adelaide. Some of these level crossings are closed to road traffic for up to 25% of peak traffic periods.
Level crossings can lead to delays and safety problems as trains, cars, buses, trucks, cyclists and pedestrians cross paths. Pedestrian and vehicle collisions and boom-gate strike crashes can result in injuries or fatalities, as well as property damage and delays on transport networks.
Longer boom-gate closures can also create barriers between different parts of the community and reduce amenity in urban areas.
These problems are expected to worsen as road traffic and the frequency of rail services increase with population growth in South Australia.
More frequent rail services will result in longer boom-gate closures, as trains are given priority on the transport network.