Gujarat municipal authorities have issued new road design and resurfacing guidelines that require detailed topographical surveys and underground utility mapping before road projects are approved, in a move aimed at reducing repeated road excavation and improving construction quality.
The guidelines require agencies to survey a road’s width, levels, Town Planning or Development Plan road lines, footpaths, junctions and existing trees before preparing its design. The survey is also expected to record the physical conditions along the proposed road corridor so that construction work can be planned around existing urban features.
A coordinated map of underground and roadside utilities will also be mandatory. The map must identify the location, depth, size and ownership of water, drainage, storm-water, electricity, gas, telecommunications and street-lighting lines. The requirement is intended to give municipal agencies a consolidated view of the infrastructure beneath and alongside roads before excavation or resurfacing begins.
Where utility information is incomplete, the guidelines require authorities to obtain approval for trial pits and prepare a report, including photographs. Trial pits allow agencies to verify the actual position and depth of underground services instead of relying only on incomplete or outdated records.
The new rules also prescribe different technical checks for different road conditions. For existing unpaved roads, soil testing will be required and the pavement design must be prepared based on the soil’s California Bearing Ratio value. The CBR value is used to assess the strength of soil supporting a pavement and helps determine the design requirements for the road structure.
For resurfacing existing asphalt roads, agencies will have to conduct deflection testing using an FWD machine. Falling Weight Deflectometer testing measures how a pavement responds to a controlled load and can help identify whether resurfacing alone is sufficient or whether more extensive strengthening is required.
Repeated road cutting for utility work has been a longstanding coordination challenge for municipal administrations. Roads may be excavated after completion for water, drainage, electricity, gas, telecom or other services, leaving uneven surfaces and increasing maintenance requirements. The new guidelines place greater emphasis on identifying this underground network before the road design is finalised.
The requirements also bring survey and testing work into the approval stage rather than leaving road quality decisions entirely to the construction or resurfacing phase. However, the report does not specify the implementation schedule, the authority responsible for monitoring compliance, or penalties for agencies or contractors that fail to follow the guidelines.
The next stage will depend on how municipal authorities incorporate the surveys, utility maps, soil investigations and pavement testing into project approvals and tender documents.
