Check Out: Accident Prone Stretches on National Highways in India Jul 30, 2021, 11:42 IST Transport Research Wing (TRW), Ministry of Road Transport and Highways has collected the Black spot data from States/UTs based on their assessment and forwarded it to concerned agencies NHAI, NHIDCL and DG Roads for further action. “Road Accident black spot is a stretch of National Highway of about 500m in length in which either 5 road accidents (in all three years put together involving fatalities/ grievous injuries) took place during the last 3 calendar years or 10 fatalities (in all three years put together) took place during the last 3 calendar years.”. The statewise detail of blackspots identified by TRW is enclosed at Annexure-I.