00492060

Component

http://onlinepubs.trb.org...trr/1989/1213/1213-011.pdf

https://scholar.google.co...hian&publication_year=1989

Described in this paper is a data acquisition and analysis system based on a lap-top computer that is compatible with an IBM personal computer (PC). The hardware consists of a computer with a standard buss slot and analog-to-digital input/output card. The software permits acquiring up to eight analog signals of data, four of which can be plotted on the computer display screen as data are acquired. Data can be stored as standard ASCII files or in compact binary form to minimize file size and speed input/output. At the end of a data collection run, data can be scaled easily and plotted for review. Additional data reduction features permit data smoothing and crossplots between any pair of variables. The system replaces conventional tape recorders and strip chart recorders and stores data in a format convenient for further computer processing. The system can operate on 12-volt vehicle power and is compact and lightweight. The approach provides a convenient, lightweight portable means to record and display vehicle motion and driver/rider response variables. Some data reduction can be accomplished online, and data can be easily processed and reviewed between runs to guide subsequent test conditions. Several popular lap-top computers with accessible PC busses are compatible with the approach. Some existing systems that could be used include the Datavue Snap 1 + 1 and the GRID Case Exp.

This paper appears in Transportation Research Record No. 1213, Human Performance and Highway Visibility: Design, Safety, and Methods. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01414055

p. 82-89

1989

Transportation Research Record

0309048095

Figures (6) ; Photos (4) ; References (5)

Data analysis; Data collection; Data reduction; Data storage; Drivers; Mathematical analysis; Microcomputers; Personal computers; Reaction time; Software; Vehicle tests

Driver reaction; Hardware; Lap top computers

Highways; Safety and Human Factors; Vehicles and Equipment; I95: Vehicle Inspection

TRIS, TRB, ATRI

Mar 31 1990 12:00AM

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