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Driver Expectancy - – I-75/I-85 Confluence(Atlanta Site A...

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Driver Expectancy CEE 4600 Lab #1
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What is Driver Expectancy? Features and patterns that drivers expect to occur in similar driving situations Typical maneuvers and signs encountered while driving Features that make driving circumstances comfortable and familiar
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Driver Expectancy Examples Exit to Right, Through to Left Turning Lanes Flare Out Clear and Visible Signals and Signs Advanced Warning Markings for Required Turning Movements
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Traffic Devices Used to help guide drivers Four Types of Devices Markings Guide Signs Warning Signs Signals
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Example Site Frontage Rd. at Northcrest Dr. (NE Atlanta)
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Problems Signing – too much and unclear Turning Lane onto Frontage Rd All other exits “diamond” configured Many “hidden” Signs
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Confusing Signs
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Right Turn to Frontage Rd
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Frontage Road
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Maintenance Concerns
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Recommendations Remove unneeded signs Make important signs more noticeable Give better advanced warning Signify Turning Lane onto Frontage Rd.
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Site A Loop Ramp at Brookwood Interchange
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Unformatted text preview: – I-75/I-85 Confluence (Atlanta) Site A • Observation – Look for Expectancy Problems – Observe how Vehicles Maneuver Aerial View of Loop Ramp Site Approach Left Exit Lab #1 Assignment • Visit Site A plus one other site • Group Site Visits and Report – Due in one week • Refer to Assignment Handout SAFETY!!!!!!!! • Always of primary importance • Do not stop car while driving through locations • Find safe place to park and observe not directly in the travel way • For Site A Deering Rd overpass good location to observe from Assignment 1 – 100 Points • Letter of Transmittal – 10 points • Site A – 35 points – Problem Identification – 5 points – Approach and Procedures – 5 points – Results – 10 points – Conclusions/Recommendations – 15 points • Site B – 35 points (same point values as above) • Drawings, Sketches, Pictures, etc. – 10 points • Formatting – 10 points...
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