Traffic Volume Index – INRIX
About INRIX Traffic Volume Index
Choose this dataset to enhance your chosen HERE map content street mapping data. Whether you are researching locations for a convenience store, looking for the best poster sites or assessing noise pollution, you need to know how much passing road traffic to expect.
Derived from billions of GPS sampled points from vehicles on the move, this dataset indicates the relative volume of moving vehicles on each street in the UK. Established spatial aggregation techniques have been used to assign each of the billions of GPS records to appropriate street links and calculate which of the 16 different traffic volume categories they should be assigned to.
Modelled values have been derived from locally collected GPS points and used where raw speed-readings have not been collected. This feature supports seamless analysis of traffic volume patterns along all roads irrespective of their length (short sections of HERE road are less likely to register a GPS point).
- Use of only the most current traffic readings (from the last two years) to enhance the reliability of the data
- A new per-metre index enabling more accurate data, by reducing the influence the link length has on the index value
- A new methodology to create proportionately-sized road links
- Modelled values are included to supplement the real GPS point readings, increasing the reliability of the data.
Traffic Volume Index can also be provided as:
- Van-specific values only
- HGV-specific values only
- Values for specific different times of day e.g. morning or evening rush hours on weekdays only
- Values for specifically weekdays only, or weekends only
How is it used?
- Assessing “footfall” of vehicles on the road network, to understand suitable outdoor advertising opportunities
- Understanding likely flow and volumes of traffic to assist in urban planning e.g. the consequent impact of road diversions during necessary roadworks
- Analysing traffic volume in conjunction with other data in order to identify optimal sites for retail locations, such as fast-food Drive-Thru restaurants
- Identifying likely high-traffic stretches of road, in order to identify alternative routes for emergency vehicle routing.
- Data collection window: Oct 2013 – Oct 2015
- Total number of readings collected for the UK: 6,674,400,425
- Readings matched to HERE map content release: Q1-2016
- Total number of links: 4,047,248
- Street/road name on which the link falls
- SIF+ ID; the unique identifier of each road link
- Road type (Subclass) e.g. Motorway, A-road, etc
- Index value of traffic volume i.e. 1-16
- Per-metre index value of traffic volume i.e. 1-16
- Link length (in metres) for which the index value applies