Case-Study: Vehicular Emission Monitoring for Toll Booth Automation
To demonstrate the efficiency of automated toll booths, Oizom installed Polludrone and helped Quantela monitor the Air Quality at Shahjahanpur toll booth, Alwar. The pollution levels increase by up to 8 times in congested traffic, which can be avoided by implementing automated toll booths. Polludrone monitored the real-time air quality at the toll booth and studied the increase in vehicular emissions due to frequent braking. Quantela used the data from the Shahjahanpur toll booth to quantify the environmental benefits of automated toll booths.
With rapid infrastructure development, more highways are budding up to reduce the travel time. The speed limit on the Indian highways is 120 kmph. People generally drive at a minimum speed of 100 kmph. Frequent braking from such high speeds generates more pollution than from slower speeds. According to a study, stopping from 30mph emits around twice the amount of brake particles compared with stopping from 20mph. Frequent acceleration, deceleration and traffic congestions at toll booths trigger pollutant emission. Waiting in long queues at manual toll booths results in delayed service of about 14.5 sec/vehicle. This leads to increased pollutant emission such as Particulate Matter (PM), Nitrogen oxide (NO2), Ozone (O3), Carbon monoxide (CO), Volatile Organic Compounds (VOCs) and Particulate Aromatic Hydrocarbons (PAH). The vehicles also consume a lot more carbon footprint fuel per trip due to higher traffic congestion. Thus, the toll booths need to be automated to avoid this unnecessary pollution emission in the environment.
Quantela wanted to study the impact of automated toll booths on the highway vehicular emission. Oizom provided a comprehensive solution in the busiest toll booths of the western region of India. Oizom started the initiative by installing Polludrone ambient air monitoring system at Shahjahanpur Tollbooth, Neemrana, Alwar. It is used to strategize environmental preventive measures by displaying the efficacy of automated toll booth on the air quality. Polludrone monitored real-time pollution data at the toll booth to measure the increased pollution rates due to continuous acceleration, deceleration and waiting in long queues. The real-time emission data is integrated on the Visual Messaging Display (VMD) on the highway to alert the drivers/passengers of the pollution level. The solution installed near Electronic Toll Collection booth also indicates a significant reduction in vehicular emissions by merely keeping the traffic flowing and avoiding heavy traffic congestion, deceleration and acceleration effects.
The study shows that automated toll booths lead to significant emission reduction. Electronic booth smoothens the traffic flow by abolishing the manual toll collection. Polludrone provided supporting data by monitoring the pollution rates at the highway. It shows how the redundant pollution at these tolls can be avoided to provide a better travelling experience and a cleaner environment.