Small car exposure data project. Phase 1 : methodology

  • Published Date:


  • Language:
Filetype[PDF-11.39 MB]

This document cannot be previewed automatically as it exceeds 5 MB
Please click the thumbnail image to view the document.
Small car exposure data project. Phase 1 : methodology
  • Publication/ Report Number:
  • Resource Type:
  • Geographical Coverage:
  • Edition:
    Final Report
  • NTL Classification:
  • Abstract:
    The Small Car Exposure Data Project represents the first phase of an effort to build a data base of exposure variables for crash-avoidance studies. Among these are: (1) vehicle make, model, year, body style, wheel base, weight, and horsepower; (2) driver sex and age; (3) vehicle headway, speed and turning maneuver; (4) permanent site characteristics; and (5) temporary site characteristics. Phase I data collection took place from March 15 to November 21, 1984 in 12 towns in the western suburbs of Boston. This report is concerned with data collection methodology and recommendations for its improvement in Phase II. The most significant methodological change in this study from previous roadside exposure data collection efforts was the introduction of portable computers. With appropriate software, these lap computers permitted a single observer to record estimates of vehicle type, driver sex and age decile, and turning maneuver. The computer also automatically triggered a camera to photograph the license plate and recorded speed from a radar gun. In the data editing process, license plates from the film were appended to each record. From these plate numbers, the Registry of Motor Vehicles supplied the corresponding vehicle identification numbers. These were run through the VINDICATOR program to generate a file of output records with all of the vehicle characteristics above. Traffic counts and Police Accident Report data were also collected for the same area and time period as the exposure data. All of these data are being analyzed and intepreted in a report prepared by Mid-America Research Institute.
  • Format:
  • Collection(s):
  • Main Document Checksum:
  • File Type:
  • Supporting Files:
    No Additional Files
No Related Documents.

You May Also Like:

Version 3.15