New answers tagged

2

Idling is particularly bad for NO2 emissions, which are a major concern for air quality. Here's an old paper showing that an idling engine emits more NO2 than one driving at 40 km/h, despite emitting less NO; NO2 is much worse for human health. More recent studies that I've found don't change the conclusion. At a junction near me there's currently an ...


0

Cars idling use about 1 litre per hour of petrol (link). Imagine 30 cars sitting together waiting in a traffic jam with their engines running for just one minute; they would burn 0.5L of petrol and create the associated pollution. Here is a video of a 0.5L bottle of petrol being burnt. The difference here between using stop-start and no stop-start would ...


1

A car stationary but left running (idling) will cause pollution in that specific location; start stop technology could avoid the pollution responsible for idling. Here I will concentrate not on the global impact of the pollution but at the localised affected area. The differing scenarios are important to understand how much of an effect start-stop will ...


Top 50 recent answers are included