【摘要】 本文对北京市道路交通事故特点、内因进行了分析，针对影响北京市道路交通事故的主要因素，确定道路交通安全３项评价指标，标定了阈值。运用道路交通安全灰色评价方法，从宏观角度进行纵向事后综合评价。更多还原

【Abstract】 The charateristics and influence factors of traffic safety of Beijing area areanalysed in this paper.Based on main factors of safety,three evaluation indexes are suggestedand their thresholds are determined.The traffic safety of Beijing area is evaluated by usingthe grey theory.更多还原