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https://hdl.handle.net/11681/34433Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Stinson, Beryl G. | - |
| dc.contributor.author | Mobility and Environmental Systems Laboratory (U.S.) | - |
| dc.date.accessioned | 2019-10-30T19:32:57Z | - |
| dc.date.available | 2019-10-30T19:32:57Z | - |
| dc.date.issued | 1971-04 | - |
| dc.identifier.govdoc | Technical Report No. 3-783 Appendix E | - |
| dc.identifier.uri | https://hdl.handle.net/11681/34433 | - |
| dc.description | Technical Report | en_US |
| dc.description.abstract | A total of 39 tests were conducted with two wheeled and two tracked vehicles at three sites at Eglin AFB, Fla., and five sites at Khon Kaen, Thailand, in an effort to establish procedures for quantifying screening effects of vegetation on driver's vision and to relate recognition distance to maximum safe speed. Recognition distance was defined in this study as that distance wherein 76 percent of the dots painted on a standard target could be counted in a vegetation assemblage. Predictions of maximum safe speeds were computed based on recognition distance, and average deviation of predicted maximum safe speed from actual average speed for each test was 3.3 mph on the safe side. It is recommended that additional testing be done to develop a less tedious and time-consuming procedure for determining recognition distance in vegetated areas and that stopping distance-soil strength relations be established. | en_US |
| dc.description.sponsorship | Sponsored by Advanced Research Projects Agency and Directorate of Development and Engineering, U. S. Army Materiel Command, Service Agency, U. S. Army Materiel Command, Projects Nos. 1T062112A131 and 1T062103A046-02 | en_US |
| dc.description.tableofcontents | FOREWORD . . . . . . . . . . . CONVERSION FACTORS, BRITISH TO :METRIC UNITS OF MEASUREMENT SUMMARY . . . . . . . . . . . . . . . . PART I: INTRODUCTION . . Background . . . . Purpose and Scope. PART II : TEST PROGRAM . . Location and Description of Test Areas . Vehicles Used. . . . . . . . . . Tests Conducted. . . . . . . . . Test Procedures and Performance Data Obtained. Terrain Data Obtained. . . . . . . . . . . PART III: ANALYSIS OF DATA. . . . . . . . . Determination of Recognition Distance from Visibility Data . . Relations of Vehicle Speed and Recognition Distance . . . . . . Predicting Maximum Safe Speed. . . . . . . . . . . . . . PART IV: SUMMARY OF TEST RESULTS, AND RECOMMENDATIONS . . . Summary of Test Results . . Recommendations . . . . . TABLES El-E3 PLATES El-E4 | - |
| dc.format.extent | 42 pages / 4.527Mb | - |
| dc.format.medium | PDF/A | - |
| dc.language.iso | en_US | en_US |
| dc.publisher | U.S. Army Engineer Waterways Experiment Station | en_US |
| dc.relation.ispartofseries | Technical Report (U.S. Army Engineer Waterways Experiment Station);no. 3-783 app.E | - |
| dc.rights | Approved for public release; distribution is unlimited | - |
| dc.source | The ERDC Library created this digital resource using one or more of the following: Zeta TS-0995, Zeutcehl OS 12000, HP HD Pro 42-in. map scanner, Epson flatbed | - |
| dc.subject | Vehicles, Military--Dynamics | en_US |
| dc.subject | Plants | en_US |
| dc.subject | Visibility | en_US |
| dc.title | An Analytical Model for Predicting Cross-Country Vehicle Performance. Appendix E, Quantification of the Screening Effects of Vegetation on Driver's Vision and Vehicle Speed | en_US |
| Appears in Collections: | Technical Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Technical Report No 3-783 App E.pdf | 4.64 MB | Adobe PDF |  View/Open |