Institute of Transportation, MOTC

• Date：2023-09-20
• Update：2023-09-23
• Department：IOT

 Project Overview

       The Executive Yuan approved the Proposal of Action Plan for Air Pollution Prevention and Control in October 2019. According to Strategy 12, traffic management practices clearly show that, in addition to transferring the power forms of modes, relevant control measures are required to guide car and motorcycle users to reduce usage.

       This plan discusses effective practices that influence road users' mode choices and takes into account the behavioral responses of road users with varying needs to various traffic pollution reduction measures. In turn, traffic management strategies and recommendations tailored to local conditions can be developed by the Ministry of Transportation and Communications in order to reduce traffic air pollution.

       This plan is for three years. A questionnaire survey on private modes of commuters in Taipei City, New Taipei City, Taichung, Kaohsiung, and other metropolitan areas was completed in the first and second years (2020 and 2021). In the third year (2022), different metropolitan areas and socioeconomic groups were further analyzed in order to propose short-, middle-, and long-term management strategies for reducing traffic air pollution. The effectiveness of air pollution reduction strategies was evaluated in situational settings for transportation and environmental protection units to carry out policy promotion and application.

Research Results

1. Following on from the contents of the questionnaire survey two years prior and additional analysis, short-, middle-, and long-term management strategies and recommendations for reducing traffic air pollution have been proposed. The short-term recommendations include intensifying bus dispatches, increasing parking fee rates, accelerating the replacement of old vehicles with low-pollution modes, and so on; the long-term recommendations include reducing parking spaces, strengthening the installation of sidewalks and bicycle lanes, broadening the scope of air quality maintenance areas, and so on; the long-term recommendations include promoting low-carbon traffic areas. They are carried out for subsequent promotion and application to facilitate traffic air pollution reduction.
2. The benefits of pollution reduction after implementing various management strategies have been estimated using a situational setting. Traffic source PM2.5 emissions can be reduced by 0.4%-1.7% in the Taipei City and New Taipei City metropolitan areas, 0.3%-1.6% in the Taichung metropolitan area, and 0.6%-3.9% in the Kaohsiung metropolitan area.

Result Promotion and Benefits

• By connecting the relevant traffic air pollution reduction management strategies in the "Proposal of Action Plan for Air Pollution Prevention and Control" and "Transportation Police White Paper-Green Transport Separate Volume," traffic management measures for improving air quality can be provided to central/local transportation competent authorities to suit local conditions, as well as improve regional traffic environment, air quality, and public health.
• Two workshops to promote 3-year research results were held in October 2022. Management strategies for reducing traffic air pollution were shared and exchanged with experts and scholars from central and local transportation and environmental protection units. This will prompt the units involved to incorporate traffic air pollution reduction mindset into planning consideration. Following the meeting, it was discovered that 92% of the attendees were satisfied with the workshop themes.

Summary of Research Results

Recommendations for Traffic Air Pollution Reduction Strategies in the Short, Middle, and Long Term

 Research Result Report

• Research and Analysis on Applying Traffic Management Strategies to Reduce Traffic Air Pollution in Metropolitan Areas (3/3)​