Transcription of Chapter 2A-8 - Sign Placement - Iowa Department of ...
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Chapter 2A-8 - Sign Placement - Iowa Department of ...
Page 1 of 17 Originally Issued: 12-17-01, Last Revised: 05-08-13 TRAFFIC AND SAFETY MANUAL Chapter 2 Signing 2A - General Signs should be located on the right side of the roadway where they are easily recognized and understood by road users. Signs in other locations should be considered only as supplementary to signs in the normal locations, except as otherwise indicated in the Traffic and Safety Manual or the Manual on Uniform Traffic Control Devices (MUTCD). Supplementary warning signs are used on the left of the roadway on multilane divided roads since traffic in the right lane might obstruct the view to the right. Signs should be individually installed on separate posts or mountings except where one sign supplements another or where route or directional signs must be grouped.
The locations of some signs are fixed such as points where speed limits change, no passing zones begin, corporate limits cross a primary road and at intersections. ... where room is limited, it may be necessary to reduce spacing. In sections with reduced speed limits, ... or desired speed at condition (MPH) 10 20 30 40 50 20 : 175 -(3) -(3) 25 ...
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