Safety on highways is essential, but high water levels on lanes risk that. Drainage structures are mostly concerned with water spread at sideways and ignore the build-up flow on the surface. This study addresses whether optimizing cross slopes prevents hydroplaning. Water depths obtained using kinematic wave equation were tested against several studies for verification. Wide range of rainfall intensities and cross slopes was tested. Findings revealed that cross slope optimization for grades up to 10% prevents hydroplaning for intensities below 250mm/hr with widths up to 15m. The study shows cross slope optimization must be considered simultaneously with inlet design work.
hydroplaning kinematic wave equation roadway drainage sheet flow on roadways
Safety on highways is essential, but high water levels on lanes risk that. Drainage structures are mostly concerned with water spread at sideways and ignore the build-up flow on the surface. This study addresses whether optimizing cross slopes prevents hydroplaning. Water depths obtained using kinematic wave equation were tested against several studies for verification. Wide range of rainfall intensities and cross slopes was tested. Findings revealed that cross slope optimization for grades up to 10% prevents hydroplaning for intensities below 250mm/hr with widths up to 15m. The study shows cross slope optimization must be considered simultaneously with inlet design work.
sheet flow on roadways roadway drainage kinematic wave equation hydroplaning cross slope optimization
Birincil Dil | İngilizce |
---|---|
Konular | İnşaat Mühendisliği |
Bölüm | Makale |
Yazarlar | |
Yayımlanma Tarihi | 1 Eylül 2022 |
Gönderilme Tarihi | 31 Ağustos 2021 |
Yayımlandığı Sayı | Yıl 2022 Cilt: 33 Sayı: 5 |