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Understanding relationship between road median type and accident frequency |
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| รหัสดีโอไอ | |
| Creator | 1. Tassana Boonyoo 2. Thanapong Champahom 3. Kattreeya Chanpariyavatevong 4. Sajjakaj Jomnonkwao 5. Pongrid Klungboonkrong 6. Vatanavongs Ratanavaraha |
| Title | Understanding relationship between road median type and accident frequency |
| Publisher | Faculty of Engineering, Khon Kaen University |
| Publication Year | 2564 |
| Journal Title | Engineering and Applied Science Research |
| Journal Vol. | 48 |
| Journal No. | 4 |
| Page no. | 466-475 |
| Keyword | Road median type, Thai highway, Accident frequency, Negative binomial model, Road segment, Road Safety |
| URL Website | https://www.tci-thaijo.org/index.php/easr/index |
| Website title | Engineering and Applied Science Research |
| ISSN | 2539-6161 |
| Abstract | Road medians play an important role in the design of four or more lanes highways with high traffic volume and the large number of accidents. This study focused on effect of factors (such as traffic volume, road characteristics, land use and road median types) on the number of accidents. The data was collected from nationwide highway, and further used to build the models by using Generalized linear with Negative binomial model distribution classified by road median types including raised-, depressed-, flush-and barrier median. The result found that the increase in traffic volume and truck ratio are positively associated with more number of accidents in all four road median model. The finding also recommends that raised-, depressed-and flush median should beimplemented within agriculture and rural area in order to decrease crashes frequency. The contributions of this study could be used as guidelineregarding highways median type implementation decision-making to enhance road safety in Thailand. |
