The Commercial Vehicle Safety Programme (CVSP) is a multi-year transformational programme that supports improved road safety. It uses road-side digital & physical infrastructure and centralised systems to record and analyse network heavy vehicle traffic. This supports improved ability to detect heavy vehicle non-compliance and identify at risk behaviour.The data provides heavy vehicle traffic volume count from Commercial Vehicle Safety Centres, grouped byDateTime of the dayCommercial Vehicle Safety Centre nameApproachLaneAxle countVehicle classVehicle categoryMeasured Gross Weight.The data is updated monthly on the 5th of the month.Data reuse caveats: as per license.Data quality statement:Data is sourced from Waka Kotahi New Zealand Transport Agency Commercial Vehicle Safety Programme. In-road and road-side sensors collect data about vehicles continuously. For more information please refer to the Commercial Vehicle Safety Programme webpages. They include information about:Commercial Vehicle Safety Centre locationsHow vehicle screening worksCompliance with Privacy Act 2020Data quality caveats:Data is suitable for statistical analysis, not individual vehicle analysis.Data published is from January 2023.The sensors used for data collection are subject to both technical errors and environmental interference.Only heavy vehicle data is available. In those cases where we could not get a vehicle class from Motor Vehicle Register, we have assumed vehicles over 3.5 t are heavy and we have given them a null vehicle class.To limit the data size, measured gross weights are rounded to the nearest 1000 kg and time of day is split into 4 quarters - '0-6', '7-12', '13-18', '19-24'.Data from Glasnevin CVSC is only published.Published data is summarised and updated monthly.For further information see: Heavy vehicle traffic count data descriptions and vehicle categories
