CVE 346 Lecture 2: Chapter 2 Basic Transportation Systems & Traffic Flow Concepts

• School: URI
• Department: Civil and Environmental Engineering
• Course: CVE 346
• Professor: Dr.Hunter

Document Summary

Chapter 2: basic transportation systems & traffic flow concepts: components of a transportation system. Its purpose, the amount of area, any current technical issues to be improved, the capacity, availability, reliability, and cost-effectiveness: layers of a transportation system, roadways, runways, railways, port berths, automobiles/trucks, transit, (cid:3045) =(cid:889)(cid:884)(cid:882) (cid:1874) (cid:1871) (cid:1868)(cid:1870) (cid:1867)(cid:1873)(cid:1870) (cid:2873) (cid:3046)(cid:3032)/(cid:3032) (cid:2871)(cid:2874)(cid:2868)(cid:2868) (cid:3046)(cid:3032) (cid:2869) 2: peak hour factor (phf) helps account for dynamic fluctuation and helps explain how spikes influence movement. = (cid:2872) (cid:3117)5 where v is the hourly volume and v15 is the greatest 15-minute count. Example: the hourly volume observed was 2000 vehicles and the following volume data for 15-minute intervals was collected. Answer: (cid:1846)= (cid:2870)(cid:2869)(cid:2868)(cid:2868: methods of capturing volume data: Example: given the following values determine the aadt: vpeak = 2100 vehicles; k = 0. 09; and d = 0. 60: person watching, pneumatic tubes, inductive loops, video image detection,