Tag Archives: visibility

Intersection Visibility – Portland Parking Ordinance

This is not as thorough as Oregon state law, ORS 811.550 (17) , which also carries a “no parking within 20ft of crosswalks” provision. I believe enforcing this law in Portland would help make our crossings safer, while generating revenue that could fund sidewalk and crossing improvements citywide. Many SUV’s, pick up trucks and even […]

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Any object within the sight triangle that would obstruct the driver’s view of an approaching vehicle (4.25ft in height) should be removed or modified or appropriate traffic control devices should be installed as per the Manual on Uniform Traffic Control Devices. Obstructions within sight triangles could be buildings, vehicles, hedges, trees, bushes, tall crops, walls, […]

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Departure sight triangles provide adequate sight distance for a stopped driver on a minor roadway to depart from the intersection and enter or cross the major roadway. These sight triangles should be provided in each quadrant of a controlled intersection. via Sight Distance traffic handbook

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Looking right, on 7th Ave & Beech St Hard to tell there’s a car coming! The plants block all visibility The point where I can finally see I love how green Portland is, and I’d probably be the last person to ask someone to move their plants.  However, they do occasionally pose a problem for […]

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via Streets Blog Visibility and eye contact are essential to avoiding conflict at a crossing, but visual communication between different street users is greatly impaired when parked cars crowd an intersection (see diagrams above). Daylighting clears away this visual obstacle and improves safety, especially for children, who have difficulty seeing and being […]

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