近來國際油價不斷上漲，同時面臨全球暖化現象下，節能減碳建設公共運輸捷運，共同打造綠色城市乃成為現代趨勢。捷運系統工程，以其屬於都會區交通建設之特性，若不慎發生重大意外事件，影響層面，幾乎都釀成對社會民生的重大威脅衝擊，所以捷運工程興建必須掌握工程品質及風險管理以達成安全、如期、如質完工的目標，然組織制度的推動與執行績效的良窳在於人，故提昇員工工作績效是組織重要的議題，本研究的目的，利用問卷調查，以臺北市捷運工程局為研究對象探討員工組織承諾與工作滿意度是否會對其工作績效產生影響？員工個人特徵如年齡、性別、婚姻、教育程度、職等、職位、年資對組織承諾、工作滿意度及工作績效有無差異？研究結果顯示，在不同的個人特徵年齡、婚姻及年資對組織承諾有顯著差異，在不同的個人特徵與工作滿意度方面無顯著差異，在不同的個人特徵教育程度、職等及職位對工作績效有顯著差異，員工組織承諾對工作績效有顯著影響；員工工作滿意度之工作本身認知與員工對於工作伙伴認知對員工工作績效有顯著影響。最後依據研究結果提出結論及建議供交通建設機關作為日後人力資源規劃及學者後續研究方向之參考。

Recent increases in international oil prices, meanwhile facing the global warming phenomenon, energy saving and carbon reduction through the construction of the public transport MRT create a green city become the modern trend. Rapid Transit System, which features as a metropolitan public transportation, has great impact on the social and public levels if accidents occur. Therefore, the MRT project construction has to intensify the engineering quality and risk management as meet the goal of safety and completed on schedule. However, the promotion of organization system and execution performance is up to people. Therefore, to improve employee performance is an important issue of the organization. The purpose of this study is to survey whether there is difference of personal characteristics of employees such as age, sex, marriage, education level, grade, position, and seniority on organizational commitment, job satisfaction and job performance respectively for Department of Rapid Transit Systems of Taipei City Government through questionnaire? As well as whether organizational commitment and job satisfaction have an impact on job performance? The results show that there is a significant difference in age, marriage and seniority to organizational commitment. There is no significant difference in personal characteristics on job satisfaction. There is a significant difference in education, grade and position to job performance. Organization commitment has a significant impact on job performance. Employee’s awareness of work itself and job partner has a significant impact on job performance. Finally, conclusions and suggestions are recommended for Traffic construction organization as a reference of manpower resources development planning as well as for future study.