Lloyd's Register Rail will be responsible for carrying out regular assessments and audits of safety plans, processes, and documentation at every stage of construction on the 176.7km six-line automated network, from detailed design through to the start of commercial operation in 2018. Lloyd's Register Rail has already carried out independent safety assessments on other urban rail projects in the region, including Mecca's Al-Mashaaer Al Mugadassah metro and the Dubai metro.