Traffic will be diverted on F-Ring Road from Monday to enable the construction of a bridge linking the road with the Al Wakrah Bypass.
The detour, carried out by the Public Works Authority (Ashghal) in co-ordination with the General Directorate of Traffic, will last until the last quarter of 2018.
During this period, F-Ring Road users heading towards Hamad International Airport will be able to use a parallel route with three lanes instead of four for a short distance of about 1,850m.
Ashghal has said the speed limit will be reduced to 80kph instead of 100kph.
It has requested all road users to obey the new speed limit and follow the new signage for their safety.