There are sanctioned works for construction of 1492 Road Over Bridges (ROBs)/ full height Road Under Bridges (RUBs) as on 01.04.2015. Out of these, Railway portion as well as State Govt. portion has been completed in 184 ROBs/RUBs. In addition to this, Railway portion has also been completed in 150 ROBs/RUBs. Further, work has been taken up for 175 ROBs/RUBs. Work in remaining 983 ROBs/RUBs, including 39 ROBs on National Highways which are to be constructed by NHAI, are in different stages of planning.
- FOB
- A F.O.B. is a designed for pedestrians. F.O.B. can be used decoratively to visually link two distinct areas or to signal a transaction. Footbridges are often situated to allow pedestrians to cross water. They are also located across roads to let pedestrians cross safely without slowing down the traffic.
- Footbridges are small, but important, because they are usually presented in townscape. The appearance of footbridges, and indeed of any other bridges, in a town, is a major concern for designers.
- Footbridges can also be built in the same ways as road and rail bridges. Most footbridges are equipped with guard rails to reduce the risk of pedestrians falling.
- Underpass
A method of constructing underpass across railway and highway includes the steps of excavating a traction ditch on one side of the road foundation and a launching ditch on the other; building a traction wall with traction holes therein against the road foundation in the traction ditch; and sequentially tracting a precast box culvert one after another through perforating, anchoring and jack driving according to the construction line until a predetermined configuration is completed thereat. Subsequently, build pier foundations, supports, and a bridging beam; arrange shell pipes; place PC steel reinforcements; and, after a certain curing period, perform prestress operations in the precast box culverts of the structure and grout cement mortar therein. Finally, excavate the earth volume under the structure and finish the road surface of the underpass for opening to traffic.