Let's make London quieter! Just walk along only of London's main roads and you can struggle to hear or make yourself heard. Some vehicles are quiet, but the range of noise is huge. It is clearly possible to make quiet engines (think hybrids, electric cars or new buses) but many are unacceptably loud. There are clear regular offenders you will all recognise; the boy-racers to the old trucks and buses. But noise is avoidable. let's do something about it.