Chen-Fu LiaoPhone: 612/ 626-1697 Email: cliao@umn.edu Completed Projects TitleYearReport #Refining Inductive Loop Signature Technology for Statewide Vehicle Classification Counts20222021-27 Deploy and Test a Smartphone-Based Accessible Traffic Information System for the Visually Impaired20202020-28 Investigating Inductive Loop Signature Technology for Statewide Vehicle Classification Counts20182018-31 Measure of Truck Delay and Reliability at the Corridor Level20182018-15 Investigate the Effectiveness of Using Bluetooth Low Energy (BLE) Technology to Trigger In-Vehicle Messages at Work Zones20162016-38 Implementation of Traffic Data Quality Verification for WIM Sites20152015-18 Using Truck GPS Data for Freight Performance Analysis in the Twin Cities Metro Area20142014-14 Development of a Navigation System Using Smartphone and Bluetooth Technologies to Help the Visually Impaired Navigate Work Zones Safely20142014-12