It has difficulty, however, in coping with complex networks in urban areas or in situations where congestion is likely to occur on links directly affecting the particular scheme being assessed.  ...  Pedestrian, cyclist and community effects The severance of communities and its effect on people in terms of increased journey time and the breaking of links between them and the services/facilities used  ...  It consists of a van and 4.5 metre-long trailer fitted with four laser sensors along the nearside wheelpath.  ...