Volume 4, Issue 1, April 2022
Editorial
Introduction to special issue on high-efficiency and intelligent train traction system
Review Articles
A review of converting woody biomass waste into useful and eco-friendly road materials
A review of train passenger safety—Inspiration from passive safety passenger protection technology of automobile
Research Articles
A novel approach for navigational safety evaluation of inland waterway ships under uncertain environment
Heavy metals in road-deposited sediment and runoff in urban and intercity expressways
In order to understand the characteristics of heavy metals in road-deposited sediments (RDS) and runoff, we investigated the size distribution and heavy metal concentrations in RDS and road runoff in typical expressways of suburban and rural area in China. The results showed that RDS on expressway surfaces were predominantly coarse particles and the fine fractions of the RDS have the highest heavy metals concentrations, while the heavy metals loadings in RDS are highest for the coarsest particles due to their large mass percentage. Traffic abrasion, vehicle emission, and atmospheric deposition were the main potential pollution sources for RDS on expressway. The results could be helpful for transportation agency for RDS and runoff management.
