Positive Guidance Principles. Positive guidance concept. Provide drivers sufficient information about roadway design, operations, and potential hazards so they respond correctly and avoid crashes. CE 552 objectives related to PG. Identify problems
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Crash data, complaint files, site diagrams
On-site speed and driver studies
Road safety audits a portion of this
Vehicle operator is in decision mode regarding lane placement, speed and more while considering existing:
moment, some information is more important than other information.
Control information is more important than guidance information
Guidance information is more important than navigation information.
Information about some hazards is more important than information about other hazards.
Move switch up or down to turn light on?
Turn clockwise or counter-clockwise to shut water off? (Tougher question )
How does this relate to highway safety design and controls?
Exit ramps - _______
Color red - ________
Curve sign or turn sign - _______________
Chevron to indicate lane shift - ___________
Recognize that different driver’s pick up cues in different ways AND short term memory is short, additional input is needed
Redundancy by _________________