Abstract
With the advances in traffic sensor technology, more useful traffic information can be generated. This paper introduces an innovative single loop speed estimation model using recent traffic sensor technology. Proposed speed estimation model can be easily integrated with existing loop systems without requiring any roadside construction. With accurately estimated speed, accurate travel time can also be derived. This will help disseminate accurate real-time traffic information, and therefore improve network performance, and traffic control/operation. The spatial and temporal transferability tests of the developed model showed encouraging results. Automated vehicle grouping is also one of the main contributions of the proposed model.