To protect passers-by from hazards on roads and highways, DBL undertakes stringent safety measures. 

Barricades erected on either side of the carriageway closed to traffic are designed to resist violation and are painted in monochrome stripes. Red lanterns or warning lights are mounted on the barricades at night and are lit through the night.

Where deviations in traffic are expected, the new channel is clearly highlighted with pavement markings or painted drums. At night, the passage is delineated with lanterns or other suitable light source.

One-way traffic operation is established whenever traffic passes through a carriageway inadequate for two-lane traffic. This is done with the help of temporary traffic signals or flagmen positioned on the carriageway. For regulation of traffic, the flagmen are equipped with red and green flags and lanterns/ lights.

On both sides, suitable regulatory/warning signs as approved by the engineer are installed for the guidance of road users. On each approach, at least two signs are put up, one close to the point where transition of carriageway begins and the other 120m away. The signs are of approved design and of reflective type, as directed by the engineer.