Dehradun, April 11 -- A joint study by the National Highways Authority of India (NHAI) and the Wildlife Institute of India (WII), Dehradun, has documented the use of animal underpasses by wildlife along an 18-kilometre-stretch inside the Delhi-Dehradun Economic Corridor, according to a press release issued by NHAI on Friday. The report, titled "Landscapes Reconnected", documents the stretch between Ganeshpur and Asharodi. According to the NHAI press release, the study offers "empirical evidence that highway infrastructure can coexist with ecologically sensitive landscapes through properly designed wildlife mitigation structures". The stretch passes through forests in the Shivalik range that serve as habitat for tigers, elephants, greater hornbills and king cobras. The stretch includes around 10.97 kilometres of underpasses and also includes one of Asia's largest wildlife elevated corridors, with an average height of six to seven metres to allow passage of large mammals, said officials. Members of the research team said the study area was divided into three zones. Researchers conducted a 40-day monitoring programme using 150 camera traps and 29 acoustic recorders along the corridor. The study documented 111,234 images of humans, domestic animals and wildlife, including 40,444 images of 18 wild species using the underpasses, said officials....