Abstract: Traffic volume forecast and analysis is an important proportion of highway construction feasibility study and post-evaluation. Based on thread of thought of traffic volume forecast and analysis,this paper contrastively analyzed actual traffic volume in working phase and forecasting traffic volume in feasibility study phase about some expressways in recent some years,put forward some suggestions on improving traffic volume forecast and analysis. Based on the research about Xi’an～Baoji expressway

Key words: post-evaluation, preceding-evaluation, traffic volume, contrastive analysis, demonstrating analysis

摘要： 交通流量预测与分析是公路建设项目可行性研究或后评价的重要组成部分。基于交通流量预测与分析的思 路，对比分析了近几年一些高速公路实际运营交通量与前期可研阶段预测交通量值，提出改进交通流量预测与分 析的一些建议。以西安)))宝鸡高速公路后评价研究为背景，应用有关成果进行了实证分析，效果良好

关键词: 后评价, 前评估, 交通流量, 对比分析, 实证分析