The metro network will ultimately comprise four lines. The 33km 19-station Blue Line will link the city centre with King Abdul Aziz International Airport, while the 42km 30-station north-south Orange Line will run along the eastern side of the city from North Obhur Bridge to Madinah Road. The east-west Green Line will be 16.5km long with 12 stations, and the Red Line will be 58km long with 24 stations.

The metro includes the construction of the 2km Obhur road-rail suspension bridge which will be 74m wide and have a maximum clearance of 51m. A new 85,000m2 hub station at Al Montalaq will provide interchange between the metro and the Haramain high-speed rail station.

In March British architecture firm Foster & Partners was awarded a contract to develop an architectural vision for the network.

The initial 16km 15-station phase of the Corniche tram line will serve the northern part of the Corniche, a 30km-long resort area stretching along the Red Sea coast.

In addition to the metro and Corniche tram line, a further 37km of light rail lines and a 159km commuter rail network with 24 stations are proposed.

All rail and bus projects in the city are being developed by MJC, a public-private body established and owned by Jeddah Development and Urban Regeneration Company.