Rationale - what it means and why it is an important measure
Traffic volumes are defined as number of vehicles (vehicles-kms) and number of vehicles on main routes. This indicator measures the pressures on both physical and human environments in a city.
How it is compiled, what data are needed
To measure the traffic volume, the total number of vehicles, total number of inhabitants and the total length of roads. The total number of vehicles on main routes is an empiric figure. To determine a trend and measure sustainability, the indicator data should be measured over several years.
Measurements and units
Traffic volumes (Total number, Total vehicles per kms, Total vehicles per capita.)
Possible temporal and spatial format
maps, trend charts.
Reference to methodology resources
OECD, 1997. Better Understanding Our Cities: The Role of Urban Indicators, EEA Indicator Set.
To reduce the number of vehicles on main routes and in cities, in general.
Targets, benchmarks, reference values
No target references.
References to examples of application
Transport in Prague: http://www.ceroi.net/reports/prague/drivers/transprt/driver.htm