Application of ‘green concept’ to segregate pedestrian and vehicular layers to reduce urban traffic congestion : a case of commercial-pedestrian underpass network in Kandy, Sri Lanka

Abstract

This paper presents the direct and indirect benefits of the feasibility studies carried out for a proposed commercial-pedestrian underpass network in Kandy CBD. Field observations and condition assessment process together with layout design of the underpass have been done by linking economic, social, and commercial centres. Services such as ventilation, water and sanitary, lighting, and security were designed following the green concepts. Natural ventilation, novel lighting techniques such as LED was introduced. Safety alarms and emergency exits were designed and well placed within the system. Further, greenery curtain concept and solar powered street lighting system were introduced to the city.