Automatic Recognition, Identification and Maintenance Threshold Determination for Pavement MarkingsMaster Thesis

• Main Authors: I-Chun Tseng, 曾奕鈞
• Other Authors: 周家蓓
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/61873129184760624716

碩士 === 國立臺灣大學 === 土木工程學研究所 === 103 === The specifications of pavement markings in Taiwan focus on marking’s material, painting location and its form. The only specification describes the maintenance standard is Taiwan Roadway Traffic Road Markings Specifications. However, it barely describes the rough maintenance threshold and does not mention the measurement. Nowadays, pavement markings get repainted after the milling of pavement. Sometimes it depends on the judgment by government officials eyes, which is not objective. Pavement markings provide important information for drivers while driving, hence it is necessary to establish a complete specification to set up a maintenance threshold and the measurement. A previous research used intensity, collected by pavement profile 2005 (PPS-2005), to identify pavement marking. Based on this, a better completeness-index calculation was constructed to describe the marking’s situation in situ. Then, a huge range detection was done in this research to obtain the binary pavement marking pictures. With these pictures, a questionnaire was created to collect the viewpoint of marking repainting from people. After using satisfaction to analyze the contents from questionnaire, this research raised two suggesting repainting complete index, one for words and the other for other pavement markings.