A campaign, which is the first public-private partnership experiment in social engineering with an objective to bring back awareness about observance of traffic regulations, was launched on Monday in Colaba, the assembly constituency of Maharashtra Assembly Speaker Rahul Narvekar. The International Advertising Association (IAA) is conducting the experiment along with Signpost, the Outdoor advertising company, the traffic police and residents. Speaking at the launch, Narvekar said, “It is a movement about one of the biggest problems in the city — traffic jams. Mumbai is an island and there cannot be…