City of Portland

SW 6th Avenue & Jackson Street Intersection Solution Study

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Presented By:• Josh Crain• Robert Acevedo

• Xiaowei Wu• Chengxin Dai

Presentation Outline

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• Introduction• Existing Conditions• Safety Concerns• Recommendations• Cost/Benefits Analysis• Conclusion

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Introduction

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Existing Conditions

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Safety Concerns

Recommendations

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1. Stripe Crosswalk2. Speed Limit Signs3. Stripe End of Bike Lane4. Stripe Restricted Exit Lane on 6th Ave5. Rumble Strips on Freeway Off-ramp6. Pedestrian Warning & Crosswalk Lights7. Update Guide Signs on I-5 & I-4058. Outreach to Businesses on Travel Directions9. Other Possible Improvements

Stripe Crosswalk

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Crosswalk should have been striped after construction.Did the contractor miss it?

Speed Limit Signs

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There are no signs in this area indicating to drivers that they are entering the downtown core with a 20 mph speed limit.

Add speed limit signs to:• Freeway off-ramp• 6th Avenue before Jackson Street

Stripe End of Bike Lane

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Stripe an exit flange at the end of the bike lane on 6th Street.

Makes it apparent to drivers that cyclists will merge with car traffic.

Stripe Restricted Exit Lane on 6th Ave

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Striping prohibits drivers from dangerous weave maneuver, changing lanes twice in less than 200 feet.

30% of off-ramp traffic turns left on College St. Drivers are attention is focused to their left merge rather than pedestrians in the crosswalk on their right.

Stripe Restricted Exit Lane on 6th Ave

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Prohibited Permitted Permitted Permitted

Rumble Strips on Freeway Off-ramp

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Need a way to grab the driver’s attention.Boulder, CO: increased crosswalk compliance by 25%

Pedestrian Warning & Crosswalk Lights

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Downside – Pedestrians may perceive security from lights and step in front of cars.

Add pushbutton activated in-pavement flashing lights at the crosswalk and on the pedestrian warning signs.

Drivers in the left lane or on Jackson Street may not see pedestrians but will see flashing crosswalk lights.

Update Guide Signs on I-5 & I-405

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• Update the guidesigns on I-5/I-405 so that 4th Street shows “Barbur Blvd/OHSU”

Route traffic headed to Barbur Blvd and OHSU to 4th Avenue instead of 6th.Will reduce exposure at this mid-block crossing.4th Avenue provides significantly more distance for turning.

Outreach to Businesses

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Target high traffic generating businessesAdvise businesses of safest routes. Google Maps, Mapquest, etc. are not yet updated to reflect changes in traffic patterns on the new mall.

Other Possible Improvements

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• Add another parking kiosk for PSU parking structure on the West entrance to reduce queuing on 6th Street.

• Upgrade Hall/Broadway, Harrison/Broadway signals to accommodate increased volume of left turning vehicles. Possibly split pedestrian and left turn phases.

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Cost/Benefits

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Conclusion