Design of Riyadh metro line 3, Saudi Arabia
Saudi Arabia
IDOM has participated in the design of the entire infrastructure of Riyadh Metro Line 3’s during the tendering process and later developed the construction project after winning the tender with the Salini-Impregilo led consortium. Effective coordination between disciplines has been key, supported by IDOM’s multidisciplinary team based in Saudi Arabia’s capital.
Line 3 runs east-west across Riyadh over 41 km, with IDOM responsible for nearly all design work: the main line infrastructure, stations (including the interchange with Line 6), depots, workshops, and urban restoration of affected areas. A multidisciplinary approach and efficient management have been essential to the project’s success.
A fast-track project for the longest line of the Riyadh Metro System
This fast-track project, the longest metro line in Riyadh, has been developed with sustainability criteria at every stage. The design features buildings with low energy and water consumption, environmentally friendly materials, and minimized maintenance costs. In response to Riyadh’s extreme climate, IDOM applied bioclimatic architectural solutions, such as efficient building envelopes and roofing that reduce solar impact and maximize natural lighting.
In depots and workshops, north-facing skylights were incorporated to optimize photovoltaic panel placement and energy use. Treated greywater is reused for irrigation, highlighting resource-saving measures. For stations, IDOM optimized the predefined design by enhancing shading, building envelopes, solar panel installation, and energy-efficient climate and lighting systems.
