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Full-Text Articles in Engineering
Corridor Mapping Using Aerial Technique, James Samuel Bethel, Boudewijn H W Van Gelder, Ali Fuat Cetin, Aparajithan Sampath
Corridor Mapping Using Aerial Technique, James Samuel Bethel, Boudewijn H W Van Gelder, Ali Fuat Cetin, Aparajithan Sampath
JTRP Technical Reports
With properly designed LIDAR control, assessment of 3D as-builts is attainable with an average over-all horizontal (planimetric) error of 0.324 ft (9.9 cm). Specifically, with an RMS error of 0.284 ft (8.7 cm) in Northing, and 0.255 ft (7.8 cm) in Easting. The average over-all vertical (height) error is 0.003 ft (0.1 cm) with a 0.108 ft (3.3 cm) RMS error. Lidar recognizable control (2m x 2m chevrons) was spaced at approximately 200m parallel to the direction of the axis of the project corridor, and at 60m sideway intervals. The project corridor was about 6 km long. Least Squares Image …
Development Of Closed Loop System Evaluation Equipment And Procedures, Eric J. Nelson, Montasir Abbas, Gary E. Shoup, Darcy M. Bullock
Development Of Closed Loop System Evaluation Equipment And Procedures, Eric J. Nelson, Montasir Abbas, Gary E. Shoup, Darcy M. Bullock
JTRP Technical Reports
Modern traffic control systems are complex entities whose performance should be thoroughly quantified prior to deployment. However, many of the advanced features available with this control equipment, such as preemption and real-time control strategies, are typically proprietary in nature, and therefore not incorporated into standard simulation models. Since it is not desirable for the engineer to learn in a field environment, under live traffic conditions, this research presents a rational procedure for evaluating and validating such control strategies in a laboratory setting. This document explores three aspects of traffic signal systems, which include the advanced control settings for single controller …
Final Evaluation Of Fhwa Technology Transfer Program At Herpicc, Purdue University, Robert K. Whitford
Final Evaluation Of Fhwa Technology Transfer Program At Herpicc, Purdue University, Robert K. Whitford
Indiana Local Technical Assistance Program (LTAP) Publications
HERPICC received an increased level of funding to provide increased levels of the transfer of highway, road, and bridge related technology to the county and city officials involved in road management, operations or maintenance. The major reason for this evaluation task was to obtain some measure of how well the added funds achieved the intended purpose. The work was conducted by the Center of Public Policy and Public Administration.