New roads can cause congestion

 作者:俞酮错     |      日期:2019-03-15 05:08:01
By Kate Ravilious TRAFFIC should flow best in cities when only a limited number of roads lead to the centre. This counter-intuitive finding could allow planners to prevent gridlock by closing roads rather than building new ones. It comes from a new way of thinking about complex networks developed by Neil Johnson,