Roadsides Plants (botany) 2 roadside environment 2 Atmospheric particulate matter 1 Autonomous Vehicles 1 Bio-concentration factors 1 Bioaccumulation 1 Bioconcentration factor 1 Budget control 1 Cadmium 1 Chromolaena odorata 1 Comparative studies 1 Cooperative vehicles 1 Diplazium esculentum 1 Directional sensor 1 Ecological response 1 Ecotoxicity 1 European Union 1 Heavy metal concentration 1 Heavy metals 1 Herbaceous plants 1 Infrastructure systems 1 Intelligent systems 1 Intelligent vehicle highway systems 1 Iron 1 Lantana camara 1 Malaysia 1 Metal concentrations 1 Metals 1 Millimeter waves 1