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Chapter 14
circulation

DEVELOPMENT OUTLINE

The road section of the Development Outline will be prepared by the Branch of Plans and Design and will be bound with the Road System Plan.

THE ROAD SYSTEM--CHART

All road system data included in the Master Plan should be presented in the Road Chart (See Plate ||). This includes designated approach roads, major and secondary park roads, truck trails or other means for vehicular circulation, and all related structures or facilities such as bridges, tunnels, parking areas, and overlooks.

The chart headings require the following data for each road or section of road:

Name of road; route number, section number 
of sub-section number, termini, length of 
road in miles and hundredths; road width, 
graded and surfaced; type of top surface, 
asphalt or concrete; construction dates, 
started completed; built by, PRA, State, 
Country; total cost; notes--to give 
additional pertinent and essential data 
about the road, bridge, parking area, etc., 
concerned.

All data pertaining to existing roads and related structures should be grouped in logical sequence at the beginning of the chart under the heading "Existing." Following this tabulation any explanatory notes should be inserted. At the close of the "existing roads" tabulation should be inserted the heading "Proposed," and the appropriate column headings (See Plate ||), followed by a complete tabulation of all proposed road projects.

A system of route and section numbering should be devised for each park or monument area. The route number designates the entire length of a certain road. Example: The East Rim Road, Route 1, extends from the Virgin River Bridge to the east park boundary, a distance of 11.25 miles. For identification and reference purposes Route 1 is divided into sections and, if necessary, further divided into sub-sections. Example: Section 1A1 extends from the Virgin River Bridge to the West Tunnel Portal, a distance of 3.93 miles; section 1A2 is the Zion Tunnel whose length is 1.09 miles; section 1A3 extends from the East Tunnel Portal to the county line, a distance of 3.63 miles. The total length of the various sections or sub-sections comprising a route should equal the tabulated length of the route as a whole. Section numbers should be assigned on the basis of recognizable units of roadway, not on the basis of contract numbers. Station numbers may be used, however, to denote termini of sections, in the absence of place names.  

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