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Utilizing the Harvesting of Rainwater to Provide Safe Road Transportation Efficiency and Increase Water Resources in the Context of Climatic Change

Author

Listed:
  • Mohamed Elsayed Gabr

    (Civil Engineering Department, Higher Institute for Engineering and Technology, Ministry of Higher Education, New Damietta 12588, Egypt)

  • Amira Mahmoud El Shorbagy

    (Civil Engineering Department, Higher Institute for Engineering and Technology, Ministry of Higher Education, New Damietta 12588, Egypt
    Civil Engineering Department, Faculty of Engineering, Minia University, Minia 61519, Egypt)

  • Hamdy Badee Faheem

    (Highway and Traffic Engineering, Civil Engineering Department, Faculty of Engineering, Minia University, Minia 61519, Egypt)

Abstract

This research investigates the effect of heavy rain on highway traffic volume and average speed, and proposes a recharging well harvesting system as an alternative freshwater source in the context of climate change. The Cairo Autostorad highway was taken as a case study. The highway climate data were collected, and traffic was measured using Metrocount equipment during the period from 2008 to 2020. The results show that the studied road is about 12 km long, and about 40 water ponds exist along the route. Each pond has an estimated water volume of 300 m 3 , and a 30 cm recharging well, with a maximum recharging capacity of 25 m 3 /h with satisfactory performance, is recommended to be constructed for rainwater harvesting. The recharging wells will clear the ponding volume within 2.5 to 3.5 h after the rainfall has stopped. The design incorporates a 1.2 safety factor against blockage inside the well. In addition, a model was established between the average rainfall depth and the average measured highway speed for the period (2008–2020) during rainy months, indicating an exponential function with a determination factor R 2 = 0.7076. The present rainfall (2020) and the representative concentration path (RCP) for 4.5 and 8.5 emissions scenarios were used to simulate the rainfall for future years: the 2040s, 2060s, 2080s, and 2100s. The results show that in the winter season for the current scenario (2020), the average rainfall depth was 45 mm, and the highway speed was 78 km/h. For the RCP 4.5 emission scenarios for the 2040s, 2060s, 2080s, and 2100s, the rainfall depths were 67.8, 126.4, 131.2, and 143.9 mm, and the corresponding reductions in the highway speeds were 23, 34, 35.3, and 36.9%, respectively, compared to the baseline scenario (2020). On the other hand, the RCP 8.5 emission scenarios show a reduction in the highway speed of 23, 34.5, 36.9, and 36.9% for the years 2040, 2060, 2080, and 2100, respectively, due to rainfall depths of 68.7, 128.4, 143.9, and 143.9 mm, respectively. This study helps policymakers to make wise decisions regarding sustainable water resource management and highway traffic problems related to rainwater depths in the context of climate change.

Suggested Citation

  • Mohamed Elsayed Gabr & Amira Mahmoud El Shorbagy & Hamdy Badee Faheem, 2022. "Utilizing the Harvesting of Rainwater to Provide Safe Road Transportation Efficiency and Increase Water Resources in the Context of Climatic Change," Sustainability, MDPI, vol. 14(15), pages 1-20, August.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:15:p:9656-:d:881503
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    References listed on IDEAS

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    1. Marijo Vidas & Vladan Tubić & Ivan Ivanović & Marko Subotić, 2022. "One Approach to Quantifying Rainfall Impact on the Traffic Flow of a Specific Freeway Segment," Sustainability, MDPI, vol. 14(9), pages 1-16, April.
    2. Charlie Wilson & Céline Guivarch & Elmar Kriegler & Bas Ruijven & Detlef P. Vuuren & Volker Krey & Valeria Jana Schwanitz & Erica L. Thompson, 2021. "Evaluating process-based integrated assessment models of climate change mitigation," Climatic Change, Springer, vol. 166(1), pages 1-22, May.
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    Cited by:

    1. Mustafa El-Rawy & Heba Fathi & Wouter Zijl & Fahad Alshehri & Sattam Almadani & Faisal K. Zaidi & Mofleh Aldawsri & Mohamed Elsayed Gabr, 2023. "Potential Effects of Climate Change on Agricultural Water Resources in Riyadh Region, Saudi Arabia," Sustainability, MDPI, vol. 15(12), pages 1-17, June.
    2. Mohamed Elsayed Gabr & Amira Mahmoud El Shorbagy & Hamdy Badee Faheem, 2023. "Assessment of Stormwater Quality in the Context of Traffic Congestion: A Case Study in Egypt," Sustainability, MDPI, vol. 15(18), pages 1-22, September.
    3. He, Xin & Xu, Xinwei & Shen, Yu, 2023. "How climate change affects enterprise inventory management —— From the perspective of regional traffic," Journal of Business Research, Elsevier, vol. 162(C).

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