|
|
|
Title: ISOMETRIC PROJECTIONS AND OTHER STUDY AND DISPLAY METHODS USED IN PRELIMINARY DESIGN OF I-70 THROUGH GLENWOOD CANYON
Accession Number: 00342143
Record Type: Component
Availability: Find a library where document is available Abstract: The designers of I-70 through Glenwood Canyon, Colorado, were responsible to reviewers from many backgrounds. All wanted to find a good fit between highway and natural landscape, but their definitions of "good fit" varied. Accurate graphic descriptions of the canyon and of alternative highway proposals were important to designers and reviewers. These were needed to show conventional highway plans, profiles, and sections; to show the appearance of the highway in the natural landscape; and to show the precise relation between highway alternatives and landforms and plant communities taken or impinged upon. Canyon and highway alternatives were described by using conventional artist's sketches, colored slides and black-and-white photographs, environmental maps, isometric drawings, composite drawings or "story boards", computer graphic cross sections at close intervals, highway representations painted into photographs, scale models, full-size mock-ups, and even diagrams and cartoons. An isometric projection technique developed for the project was particularly helpful in the design of the highway in the western half of the canyon. Both landscape and highway alternatives can be drawn in isometric with engineering accuracy and combined, with much of the realism of an architectural perspective. Highway designers and reviewers have traditionally come from similar backgrounds and have communicated through familiar methods. The Glenwood Canyon work was typical of recent projects in which unusual proposals were reviewed in a process more like a New England town meeting. In such a setting, the ability to communicate lucidly, in words and images, is an important aspect of highway engineering. (Author)
Supplemental Notes: Publication of this paper sponsored by Committee on Geometric Design. 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
Monograph Title: Monograph Accession #: 01419467
Authors: Passonneau, Joseph RPagination: pp 1-7
Publication Date: 1981
Serial: ISBN: 0309032202
Media Type: Print
Features: Figures
(16)
; Photos
(5)
; References
(3)
TRT Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Bridges and other structures; Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure
Files: TRIS, TRB
Created Date: Jan 29 1982 12:00AM
More Articles from this Serial Issue:
|
