Accident prevention and control is a critical issue in modern traffic system. A minor mistake may probably lead to severe tragedy. Traditional surveillance system only provides post-incident report and evidence, which is not enough for beforehand prevention especially in today’s enormous transportation network. Besides, stealers and terrorists often select traffic hub or transport station as attack point since it’s difficult to be discovered and relatively easy to success in a crowd environment. CyeWeb’s intelligent analysis tools such as loitering detection and abandoned object detection allow monitoring personnel to find out and response to potential threats immediately.