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...Sustainable transport systems linkages between environmental issues public non motorised and safety dinesh mohan geetam tiwari transportation research injury prevention programme indian institute of technology delhi india introduction a system must provide mobility accessibility to all urban residents in safe environment friendly mode this is complex difficult task when the needs demands people belonging different income groups are not only but also often conflicting for example if large proportion population can afford use private vehicles or buses then they have either walk ride bicycles work provision infrastructure bicyclists pedestrians may need segregation road space from traffic reduction speeds both measures could result restricting car users similarly reduce pollution at times conflict with those needed accidents increases average vehicle emissions an increase accident rates most discussions government policy documents dealing health focus on air as main concern because genera...