Dolphin Engineer Jaipur
                     Road 
Infrastructure 
in India
Road Survey
Road surveys are essential for the design, construction, and maintenance of roads and highways. Accurate surveys 
help in creating durable and safe transportation networks. Dolphin Engineer offers comprehensive road survey 
services, ensuring that all aspects of road developmentare thoroughlyassessed and planned.
Road Types in India:
Expressway:
These are the high-class road networks that can be used at 
speeds up to 120 km/h in India. As of March 2023, India 
possesses an expressway network of 4,067 kilometers 
connecting important cities and improving travel times.
NH National Highways:
NHAI These highways form part of the core national network connecting 
the country from one end to the other. Despite making up just 2% of 
India's road length, they carry an impressive 40% of the traffic in India and 
can normally allow a speed of 80-100 km/h.
State Highways (SH):
State highways connect cities of a particular state and are maintained by 
the state governments concerned.
Major District Roads (MDR):
MDRs link district headquarters with other key places within the district.
Other District Roads (ODR)
These roads are vital for the development of rural areas as they connect 
minor towns and villages.
Village Roads
These are one-lane roads that connect the rural areas with other larger 
road networks. These roads are locally the responsibility of gram 
panchayats and normally have a speed limit of 20-30 km/h.
B-3, C-49, VidyaApartments, Paras 
Marg,Bapu Nagar Jaipur -302020
+91 9680026609
www.dolphineengineers.com