The participants of a two-day workshop on fuel efficiency were unanimous on collective efforts to combat issues of vehicle pollution affecting the health and efficiency of people. The workshop on selection of special studies and projects in the road transport, organized by the National Energy Conservation Centre (Enercon) and the United Nations Development Programme (UNDP), concluded here on Wednesday. The workshop was an attempt to gather all the key agencies and individuals to develop better policies, projects and implementation techniques for the projects in the public transport sector.