Variation In Surface Permeability Of Interlock Concrete Pavements -Insights From Ernakulam District

Abstract

Traditional methods of pavements using bituminous mixes have to be provided with drainage infrastructure as well, in heavy rainfall regions. Providing similar surfaces even for low-volume rural roads is often done without providing drains, considering space constraints. This impacts the draining of rainwater, causing flash floods.  Low Impact Development (LID) techniques are a proven and effective alternative, which ensure easy construction and maintenance, while also reducing stormwater runoff. Several case studies have focused on residential roads, parking lots, and other low-volume roads as potential areas for the provision of permeable pavements. This paper aims to assess the surface permeability of sample stretches that cover various sites in the district of Ernakulam in Kerala to assess the impact of age and traffic density.