1 / 8

B2. Vehicle-Based Surveys ISCTSC 2008 – Annecy, France

B2. Vehicle-Based Surveys ISCTSC 2008 – Annecy, France. Administrative data. Vehicle Registration files are maintained by nearly all countries Provides detailed information on the vehicle fleet Can use registry files to sample motor vehicle use

samuru
Download Presentation

B2. Vehicle-Based Surveys ISCTSC 2008 – Annecy, France

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. B2. Vehicle-Based SurveysISCTSC 2008 – Annecy, France

  2. Administrative data • Vehicle Registration files are maintained by nearly all countries • Provides detailed information on the vehicle fleet • Can use registry files to sample motor vehicle use • Vehicle inspection programmes potential source of odometer readings (VKT) • Issues • File integrity • scrapped vehicles not removed • Confidentiality • Not every country allows access for sampling • Coverage • Foreign vehicles not covered

  3. Roadside interviews • Largely local in scope • Cordon/screenlines in urban areas • Helsinki/Stuttgart ANPR-based O-D surveys • Toll road planning • Methodology issues • O-D flows dependent on where the vehicles are surveyed (geographic bias) • Study area needs to be tightly defined • Requires field deployment • Safety concerns • Burden (survey needs to be short) • Data quality since sites are temporary

  4. Traffic counts • Nearly universal • Data are collected for a network of permanent/short-term sites using machine-based and manual counts • Works best on motorways/arterials • Can estimate VKT by road class and vehicle class • Management of networks a challenge • Sites widely dispersed • High maintenance and data collection costs • Truck classification differs across countries • comparability

  5. Different Technologies (1) • GPS • Offers routing, more precise O-D, time/speed profiles, elevation • Cold start problem leads to gaps • Urban canyons/tunnels block signal • Purpose not known but can impute from land use • On-Board Diagnostics (OBD-II) • All North American vehicles model year 1996 and newer must carry an OBD-II data port • Can collect extensive vehicle performance information passively • Instantaneous fuel use • Speed ranges • Coolant temperatures

  6. Different Technologies (2) • Automatic number plate recognition (ANPR) • Use camera and OCR technology to collect license plate data • Travel time/O-D via direct plate matching • Can use vehicle registry as a sampling base (not available in all jurisdictions) • Uses • Enforcement • Fraud detection • Heavy goods movement • Foreign vehicles

  7. Different Technologies (3) • Electronic toll tags • Electronic number plates • Weigh-in-motion • Cell-phone tracking • Assisted GPS (A-GPS)

  8. Research priorities for vehicle-based surveys • Fuel and emissions • More detailed information on fuel use/emissions profiles • Road safety • Where accidents occur (GPS) • Road user charging • Tapping full use of new technologies • Reduce burden of collecting vehicle use data

More Related