FORECASTING MODEL OF ROAD SURFACE TEMPERATURE ALONG A ROAD NETWORK BY HEAT BALANCE METHOD
SAFF model proposed in this study allows to forecast the road surface temperature along a road network using the DSM and heat balance method. The accuracy of the SAFF model was identified by comparing observed thermal mapping data and forecast results at 631 selected stretches (each with a length of 20m) of KASUGA-WADAYAMA road (12.6km) in Hyogo prefecture. The SAFF model had 58% and 86% of spatial accuracy rate for the calculation of Ts with an error of less than 1°C and 2°C based on all road stretches, respectively. The mean absolute error of Ts over the entire route and calculation term of 45 hours was 1.5°C and the error was smaller during the nighttime than the daytime. CPU time with an algorithm to combine mountain elements and to remove invisible mountain elements from calculation routine was reduced to 1/23 of that without the algorithm. Consequently, the SAFF model made it possible for one hour forecast of the spatial variation in dry road surface temperature over the entire KASUGA-WADAYAMA road.
- Record URL:
- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/21856559
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Authors:
- Saida, Akira
- Fujimoto, Akihiro
- Fukuhara, Teruyuki
- Publication Date: 2013
Language
- English
- Japanese
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 1-11
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Serial:
- Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
- Volume: 69
- Issue Number: 1
- Publisher: Japan Society of Civil Engineers
- ISSN: 2185-6559
- Serial URL: https://www.jstage.jst.go.jp/browse/jscejpe/-char/en
Subject/Index Terms
- TRT Terms: Forecasting; Heat balance; Heat transfer; Solar radiation; Surface course (Pavements); Surface temperature
- Geographic Terms: Hyogo Prefecture (Japan)
- Subject Areas: Highways; Pavements; Planning and Forecasting; I52: Construction of Pavements and Surfacings;
Filing Info
- Accession Number: 01504792
- Record Type: Publication
- Source Agency: Japan Science and Technology Agency (JST)
- Files: TRIS, JSTAGE
- Created Date: Jan 27 2014 9:40AM