The　relationship　between　traffic　flow,　road　characteristics,　and　light　accidents　was　researched,　and　a　Generalized　Linear　Model　of　minor　accidents　was　established.　It　is　found　that　motor　vehicles＇　traffic　flow,　segment　length,　and　number　of　lanes　are　positive　for　accidents　on　road　segments.　The　sections　without　isolation　between　non-motor　vehicle　and　motor　vehicle　lanes　have　more　accidents.　Compared　with　other　types　of　land　use,　the　sections　for　business　use　have　more　accidents.　However,　the　marked　center-line　and　speed　limits　have　no　significant　influence　on　minor　accidents.　Based　on　these　conclusions,　some　suggestions　for　improving　city　safety　are　proposed.　©　2011　ASCE.