Carbon-emitting Vehicle Free Day

IIT Roorkee observed carbon-emitting vehicle-free day on 15th June 2023. On this day, only electric vehicles were allowed for individual (non-commercial) users. The noise and particulate matter pollution were measured on this day and the typical day (June 16th) when no restriction were observed. These days are referred to as non-motorised day and "motorised day" (respectively) in the image. The comparison results are shown in the image below. It is noteworthy that: