A conference at the Aotea Centre heard last week that traffic lights would be redundant one day thanks to interconnected fleets of driverless cars that "talk" to each other. This, however, was surely of limited comfort to the great majority of the Aucklanders in the audience. They have an immediate problem because of the many shortcomings in the city's traffic light system. That is the legacy of under-investment which continues to this day in terms of funding for research designed to improve matters.
The obvious implication is that frustrated motorists must simply put up with a substandard situation. Yet on any number of grounds, this is a problem that transport authorities should be striving to solve. Auckland's geography and lack of public transport do not make this easy. Unlike many cities, where motorists are able to go through long successions of green lights, Auckland's traffic does not move largely in one direction in the morning and the opposite at night. It has loadings in several directions that are often similar. Nonetheless, that is an insufficient explanation for the many flaws in the system.
Experts point to the widely used Sydney Co-ordinated Adaptive Management System (Scats) being implemented on the cheap almost 45 years ago, with too few sensors to measure traffic demand accurately.
To compound that problem, little has been done since to improve it, while the number of cars on Auckland's roads has soared. Further complications arose from Auckland's former local-body structure, which sponsored unco-ordinated lights and conflicted priorities.
The outcome is the woes that afflict motorists daily and prompt a steady stream of letters of complaint to this newspaper. Delays from short-phasing traffic lights contribute to congestion that extracts a heavy cost in wasted petrol and harmful emissions, with an inevitable response in driver attitude. Red-light running is the most dangerous consequence when those behind the wheel become not prepared to sit patiently at lights. The increase in the practice tells its own tale.