Road Temperature Modelling Without In-Situ Sensors

Modelling of the pavement temperature facilitates winter road maintenance. It is used for predicting the glaze formation and for scheduling the spraying of the de-icing brine. The road weather is commonly forecasted by solving the energy balance equations. It requires setting the initial vertical pr...

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Main Authors: Karol Opara, Jan Zieliński
Format: Article
Language:English
Published: Riga Technical University Press 2017-12-01
Series:The Baltic Journal of Road and Bridge Engineering
Subjects:
Online Access:https://bjrbe-journals.rtu.lv/article/view/3248
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author Karol Opara
Jan Zieliński
author_facet Karol Opara
Jan Zieliński
author_sort Karol Opara
collection DOAJ
description Modelling of the pavement temperature facilitates winter road maintenance. It is used for predicting the glaze formation and for scheduling the spraying of the de-icing brine. The road weather is commonly forecasted by solving the energy balance equations. It requires setting the initial vertical profile of the pavement temperature, which is often obtained from the Road Weather Information Stations. The paper proposes the use of average air temperature from seven preceding days as a pseudo-observation of the subsurface temperature. Next, the road weather model is run with a few days offset. It first uses the recent, historical weather data and then the available forecasts. This approach exploits the fact that the energy balance models tend to “forget” their initial conditions and converge to the baseline solution. The experimental verification was conducted using the Model of the Environment and Temperature of Roads and the data from a road weather station in Warsaw over a period of two years. The additional forecast error introduced by the proposed pseudo-observational initialization averages 1.2 °C in the first prediction hour and then decreases in time. The paper also discusses the use of Digital Surface Models to take into account the shading effects, which are an essential source of forecast errors in urban areas. Limiting the use of in-situ sensors opens a perspective for an economical, large-scale implementation of road meteorological models.
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spelling doaj-art-4e5c5e16f56548c1b061db94c9cc61fc2025-08-20T02:52:01ZengRiga Technical University PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882017-12-0112410.3846/bjrbe.2017.301779Road Temperature Modelling Without In-Situ SensorsKarol Opara0Jan Zieliński1Systems Research Institute, Polish Academy of Sciences, ul. Newelska 6, Warszawa 01447, PolandHeller Consult sp. z o.o., ul. Chałubińskiego 8, Warszawa 00613, PolandModelling of the pavement temperature facilitates winter road maintenance. It is used for predicting the glaze formation and for scheduling the spraying of the de-icing brine. The road weather is commonly forecasted by solving the energy balance equations. It requires setting the initial vertical profile of the pavement temperature, which is often obtained from the Road Weather Information Stations. The paper proposes the use of average air temperature from seven preceding days as a pseudo-observation of the subsurface temperature. Next, the road weather model is run with a few days offset. It first uses the recent, historical weather data and then the available forecasts. This approach exploits the fact that the energy balance models tend to “forget” their initial conditions and converge to the baseline solution. The experimental verification was conducted using the Model of the Environment and Temperature of Roads and the data from a road weather station in Warsaw over a period of two years. The additional forecast error introduced by the proposed pseudo-observational initialization averages 1.2 °C in the first prediction hour and then decreases in time. The paper also discusses the use of Digital Surface Models to take into account the shading effects, which are an essential source of forecast errors in urban areas. Limiting the use of in-situ sensors opens a perspective for an economical, large-scale implementation of road meteorological models.https://bjrbe-journals.rtu.lv/article/view/3248ice formationinitial conditionspavement temperatureroad meteorologyroad weather stationsshading effects.
spellingShingle Karol Opara
Jan Zieliński
Road Temperature Modelling Without In-Situ Sensors
The Baltic Journal of Road and Bridge Engineering
ice formation
initial conditions
pavement temperature
road meteorology
road weather stations
shading effects.
title Road Temperature Modelling Without In-Situ Sensors
title_full Road Temperature Modelling Without In-Situ Sensors
title_fullStr Road Temperature Modelling Without In-Situ Sensors
title_full_unstemmed Road Temperature Modelling Without In-Situ Sensors
title_short Road Temperature Modelling Without In-Situ Sensors
title_sort road temperature modelling without in situ sensors
topic ice formation
initial conditions
pavement temperature
road meteorology
road weather stations
shading effects.
url https://bjrbe-journals.rtu.lv/article/view/3248
work_keys_str_mv AT karolopara roadtemperaturemodellingwithoutinsitusensors
AT janzielinski roadtemperaturemodellingwithoutinsitusensors