Policy | UHI-related policy | Effect target | Effect function (Artificial heat exhaust volume calculation formula) Q_{n} [J] |

No. 1 | Spread of low-emission vehicles (hybrid) | Moving targets | Q_{1} = road length L [km] × [(diffusion rate d_{1} [%]×number of vehicles by model M [number] × waste heat variables by model/speed X_{Cv}_{1} [J/(km∙number)]) + {(100-diffusion rate d_{1} [%]) × number of vehicles by model M [number] × waste heat coefficients by model/speed C_{v} [J/(km∙number)]}] |

No. 2 | Suppression of waste heat through choice of fuel burned (bioethanol) | Q_{2} = road length L [km] × [(diffusion rate d_{2} [%]×number of vehicles by model M [number] waste heat variables by model/speed X_{Cv2} [J/(km∙number)]) + {(100-diffusion rate d_{2} [%]) × number of vehicles by model M [number] × waste heat coefficients by model/speed C_{v} [J/(km∙number)]}) |

No. 3 | Improvement of traffic flow by securing space for cyclists and pedestrians | Q_{3} = road length L [km] × noumber of vehicles by model M [number] × waste heat variables by model/speed X_{Cv}_{3} [J/(km∙number)] |

No. 4 | development of bypasses | Q_{4} = road length L [km] × number of vehicles by model M [number] × waste heat variables by model/speed X_{Cv}_{4} [J/(km∙number)] |

No. 5 | Improvement of access roads to airports and ports | Q_{5} = road length L [km] × number of vehicles by model M [number] × waste heat variables by model/speed X_{Cv}_{5} [J/(km∙number)] |

No. 6 | Special road surfaces (water-holding surfaces) | Stationary targets | Q_{6} = road length L [km] × road width W [km]×road surface waste heat variables X_{C}_{lW} [J/km^{2}] |

No. 7 | Increase in efficiency of energy consumption equipment (changing signal lights to LED) | Q_{7} = number of traffic signals S [number] × ({LEd diffusion rate d_{7} [%] × traffic signal waste heat variables X_{CL} [J/number]} + {(100-LED diffusion rate d_{7} [%]) × traffic signal waste heat coefficients C_{L} [J/number]}) |

No. 8 | Upgrading signal control | Moving targets | Q_{8} = road length L [km] × number of vehicles by model M [number]×waste heat variables by model/speed X_{Cv}_{8} [J/(km∙number)] |

No. 9 | diffusion of ETC | Q_{9} = road length L [km] × [(diffusion rate d_{9} [%] × number of vehicles by model M [number] × waste heat variables by model/speed X_{cv}_{9} [J/(km∙number)]) + {(100-diffusion rate d_{9} [%]) × number of vehicles by model M [number] × waste heat coefficients by model/speed C_{v} [J/(km∙number)]}] |