title: Assessment of environmental benefits of flyover construction over signalized junctions: a case study.
abstract: In the present study, the impact of the flyover construction to curb traffic congestion problem has been assessed in terms of traffic decongestion, time saving, fuel saving and emission reduction. A flyover has also been constructed over four signalized junctions in the main commercial area in Nagpur city, India. It was found that about 35% of the total traffic is diverted to the flyover, which results in a reduction of about 32% in the total emission generation. Travel on the flyover resulted in as much as 60-70% saving in time, compared to the travel on the main road, particularly when all the four signals are found to be in the red phase. The loss of fuel for combustion and the associated cost resulting from waiting for the signal to change are also estimated, and these are found to be significant.
authors.affiliation: National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440 020, India. sk_goyal@neeri.res.in
authors.forename: S K
authors.initials: SK
authors.lastname: Goyal
authors.forename: Sangita
authors.initials: S
authors.lastname: Goel
authors.forename: S M
authors.initials: SM
authors.lastname: Tamhane
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects* / Q000032:analysis; D002947:Cities; D002958:City Planning; D004777:Environment; D005742:Gasoline; D006801:Humans; D007194:India; D018986:Motor Vehicles; D014186:Transportation; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D005742:Gasoline; D001335:Vehicle Emissions