Group Members:

Pamela JohnsonSarah BronsteinChengxin DaiDaniel Nguyen

SE 82nd & FrancisRapid Flash Beacon

Zoning: Commercial

Portland Maps SE 82nd Ave & SE Francis St.- Foster- Powell- Portland. PortlandMaps © 2011

• Wal-Mart• Marshall H.S.• Century 16 Theater• Bank of America

Crosswalk

Rapid Flash Beacon

• User Activated• Voice Recording• Irregular Flashing LED’s• 30 Second Phase Signal Length

Video Data: Methodology

PBOT Video data from Feb 2, 2011, 4-6pm  • Pedestrian and Bicyclist Counts

• Violations and Behavior Counts

Pedestrian Violations:• Listening to iPod/talking on phone• Jaywalking• Not pushing the beacon button• Partial Compliance: cutting straight across the

refuge     Bicyclist Violations:• Not wearing a helmet• Not pushing the beacon button       • Partial Compliance: cutting straight across the

refuge

Motorist Violations• Didn't yield to RFB users • Intruded into crosswalk• Blocked crosswalk when stopped

• 100% cyclists cross at RFB• 72% pedestrians cross at RFB

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tRFB Usage

0 20 40 60 80

Crossing at flashing beaconCrossing 82nd at Francis

Pedestrians:• 10% didn’t activate flashing

signal• 62% partial compliance• Jaywalking

2% at RFB vs 70% at Francis

Bicyclists:• 32% didn’t activate flashing signal• 17% partial compliance• 89% ride on 9-foot sidewalk. • 68% no helmet.

Bicyclist Behavior and Violations

0 2 4 6 8 10 12

Partial Compliance

No Helmet

Rode on Sidewalk

Didn't Push Beacon Button

Pedestrian Behavior and Violations

0 10 20 30 40 50

Partial Compliance

IPOD/Phone

Didn't Push Beacon Button

• Less than 46% beacon users have to yield to at least one car Assume: 1 user cross 82nd Ave per time Yielding%= unstopped vehicle / user counts

• Sometimes motorists didn’t yield due to traveling speed. A subsequent motorist might yield.

• Car queue blocks zebra crossing and forces beacon users to cut straight across the refuge.

Motorist Behavior and Violations

0 5 10 15 20 25 30

Didn't Stop for Flashing Beacon

Blocked Crosswalk

Intruded into Crosswalk

Delay = starting delay + median delay

• median delay: the pedestrian island increases the crossing distance but also the median delay.

• starting delay: average delay time 5s at RFB < average delay time 10s at un-signalized intersection with stop control on minor streets.

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Gender Split Behavior and Violation

counts

0 5 10 15 20

MaleFemaleUnknown

Recommendations:

Align crossing facilities     with transit stops

Recommendations:

Add railing or flexible posts to encourage pedestrians to follow the path in the median

Questions?