The tiger population is facing a growing threat from heavy traffic with the ministry of surface transport demanding environmental clearances for 17 highways across tiger reserves from the ministry of environment and forests (MoEF).

The Rajaji National Park in Uttarakhand is facing a massive problem as over 50,000 vehicles ply through the highway (NH-58 and NH-72) on a daily basis thereby preventing animals from moving from one part of the reserve to another.