Corrigendum to “Assessing the Impact of Closely-Spaced Intersections on Traffic Operations and Pollutant Emissions on a Corridor Level” [Transp. Res. Part D: Transp. Environ. 54 (2017) 304–320] (Transportation Research Part D (2017) 54 (304–320), (S136192091530081X), (10.1016/J.trd.2017.05.016))