Applicability of CoRTN Model in Indian Road Traffic Condition

Abstract

The primary step in reducing traffic noise is to build a model for traffic noise prediction. The suitability and applicability of calculation of road traffic noise (CoRTN) model were checked in Indian city road traffic condition and national highways. Both roads were different from each other in many ways. Previously CoRTN model was successfully applied in homogeneous traffic condition, but its applicability in heterogeneous traffic flow requires much attention. Four locations were selected, and two locations were on homogenous traffic flow condition (national highways) and another two location on heterogeneous traffic flow (city roads). The range of noise level (L10) in national highways were 76–80 dBA and in city roads were 80–84 dBA. The result of the study showed that CoRTN model predicted well for national highways with R2 value 0.817. While for city roads, model fits the data really poorly. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.