Green Lane Planning for Safety, Beauty, and Reduction of the Diffusion of Air Pollutants to the Environment in the Boyolali Interchange on Semarang-Solo Toll Road

Abstract

The high mobility of people requires fast transportation making toll roads as an alternative route to break up congestion and shorten the distance to a place. The availability of toll roads that are passed by many motorized vehicles, causes air pollution. To reduce the impact of air pollution, greenery is needed that can absorb exhaust emissions. In this study, motor vehicle exhaust emissions focus on NO2 gas. The purpose of this study was to analyze the emission of NO2 gas pollutants from motor vehicles, the absorption capacity of NO2 by vegetation, and to plan green lane that can improve the quality of the interchange landscape. The research was conducted at the Boyolali Interchange. The research method used is descriptive-quantitative based on the potential and constraints on the site, as well as analysis of emissions and vegetation that can absorb NO2 gas pollutants. Based on the results of the analysis, the development of green lane space is divided based on the function of vegetation which includes clear zone, cushion planting, aesthetics, identity, conservation, and guides which it supported with trees, and shrubs. The area of land that has the potential to be developed into green lane is 41,956.3 m2. The volume of vehicles is 66,637 per day with the resulting NO2 gas emission of 57.797 g. After planning, the emission that can be absorbed by plants is 48,293.50 g. Planned green lane of the Boyolali Interchange can reduce 83,56% of NO2 gas emissions released by motorized vehicles.