| Policy | UHI-related policy | Effect target | Effect function (Artificial heat exhaust volume calculation formula) Qn [J] |
| No. 1 | Spread of low-emission vehicles (hybrid) | Moving targets | Q1 = road length L [km] × [(diffusion rate d1 [%]×number of vehicles by model M [number] × waste heat variables by model/speed XCv1 [J/(km∙number)]) + {(100-diffusion rate d1 [%]) × number of vehicles by model M [number] × waste heat coefficients by model/speed Cv [J/(km∙number)]}] |
| No. 2 | Suppression of waste heat through choice of fuel burned (bioethanol) | Q2 = road length L [km] × [(diffusion rate d2 [%]×number of vehicles by model M [number] waste heat variables by model/speed XCv2 [J/(km∙number)]) + {(100-diffusion rate d2 [%]) × number of vehicles by model M [number] × waste heat coefficients by model/speed Cv [J/(km∙number)]}) | |
| No. 3 | Improvement of traffic flow by securing space for cyclists and pedestrians | Q3 = road length L [km] × noumber of vehicles by model M [number] × waste heat variables by model/speed XCv3 [J/(km∙number)] | |
| No. 4 | development of bypasses | Q4 = road length L [km] × number of vehicles by model M [number] × waste heat variables by model/speed XCv4 [J/(km∙number)] | |
| No. 5 | Improvement of access roads to airports and ports | Q5 = road length L [km] × number of vehicles by model M [number] × waste heat variables by model/speed XCv5 [J/(km∙number)] | |
| No. 6 | Special road surfaces (water-holding surfaces) | Stationary targets | Q6 = road length L [km] × road width W [km]×road surface waste heat variables XClW [J/km2] |
| No. 7 | Increase in efficiency of energy consumption equipment (changing signal lights to LED) | Q7 = number of traffic signals S [number] × ({LEd diffusion rate d7 [%] × traffic signal waste heat variables XCL [J/number]} + {(100-LED diffusion rate d7 [%]) × traffic signal waste heat coefficients CL [J/number]}) | |
| No. 8 | Upgrading signal control | Moving targets | Q8 = road length L [km] × number of vehicles by model M [number]×waste heat variables by model/speed XCv8 [J/(km∙number)] |
| No. 9 | diffusion of ETC | Q9 = road length L [km] × [(diffusion rate d9 [%] × number of vehicles by model M [number] × waste heat variables by model/speed Xcv9 [J/(km∙number)]) + {(100-diffusion rate d9 [%]) × number of vehicles by model M [number] × waste heat coefficients by model/speed Cv [J/(km∙number)]}] |