The ultimate result of this service is to develop detailed designs for civil works of two main stretches along the BRT Corridor (42 km) which include pedestrian bridges, structural bridges, and tunnels. All detailed designs packages produced must be aligned with the planning of existing roads and BRT corridor detailed designs and they must meet all BRT standards and requirements as per the BRT planning guide and technical advice of the UN-Habitat team and their consultancy firms. The consultancy firm is required to coordinate with and align work with current governmental civil work plans. Upon completion of the assignment, there will be a complete tender package for the Western BRT Corridor, ready to be tendered including BOQs, specifications, and contracts. This service will provide the necessary technical consultation to UN-Habitat in order to tender for BRT construction and operation and advocate for a new high quality and sustainable mode of transportation.