Enforcement

The weigh in motion market remains especially buoyant and technological development continues to reflect this. Although there are major differences in operating philosophies, particularly between developed and developing countries, both the numbers of countries using Weigh In Motion (WIM) technology and the numbers of systems that they deploy are on the increase.

What future is there for automatic number plate recognition? Will it be supplanted by electronic vehicle identification, or will continuing development maintain the technology's relevance? In recent years, digitisation and IP-based communication networks have allowed Automatic Number Plate Recognition (ANPR) to achieve ever-greater utility and a commensurate increase in deployments. But where does the technology go next - indeed, does it have a future in the face of the increasing use of, for instance, Dedi

District 7 of Caltrans has been conducting trials to see whether the use of a single inductive loop to measure vehicle lengths and so identify heavy trucks is feasible. So far, the results have been very promising, according to Lead Transportation Engineer Steve Malkson. Between them, the adjoining ports of Los Angeles and Long Beach, the US's two biggest, cover some 10,700 acres (43km2) and 68 miles (109km) of waterfront.

Amsterdam City Council has chosen to move away from manual enforcement of its environmental zone, which is intended to keep highly polluting goods vehicles out of the city centre, and is installing an automated, ANPR-based system. The signs are not much to look at: white with a red circle and the all-important word Milieuzone ('Environmental zone'). But these signs mean that Amsterdam's city centre is strictly off-limits to polluting goods traffic. At the moment compliance is monitored by special wardens wh

Across the board, technology is being brought to bear to improve the efficiency of enforcement. Bus lane monitoring, parking and controlled access have all benefited from systems introduced in recent months. While speed and red light infringements tend to attract the most attention, there remain several other areas of enforcement where automation can bring significant operational and efficiency benefits. Lane monitoring and access control also continue to benefit from technological development.