Portland, Oregon
CE 450 Transportation Safety Analysis
Spring 2009 Final Presentation
Nicolle Sheaves, Travis Hall, and Anna Witt
1
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Improving Intersection Safety at Market St. & 1st Ave. in Portland, OR, Exams of Civil Engineering
The findings of a transportation safety analysis conducted for the intersection of market st. & 1st ave. In portland, or. The study identified issues such as unusual geometry, large number of angle crashes, and disregard of signals. The document proposes three modification options with corresponding costs and benefits, and recommends option 2 as a viable short-term solution. References to relevant engineering reports and standards are provided.
Typology: Exams
Pre 2010
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Portland, Oregon
CE 450 Transportation Safety Analysis Spring 2009 Final Presentation Nicolle Sheaves, Travis Hall, and Anna Witt
Background & Introduction
Crash Data & Diagrams
Modification Options
Bid Estimate
Recommendations
Conclusion
Unusual Intersection Geometry
Large Number of Angle Crashes
Signage and Pavement Markings
Lighting Conditions
Presence of Loading Zone
Frequency by Crash Type
ANGLE
REAR-END
S-OTH
BIKE
70% Caused by Disregarding the Signal
Crash Data & Diagrams
85% of Vehicular Crashes are PDO
Frequency by Weather 4 9 2 1 RAIN CLEAR CLOUDY UNK
- Option
- Option
- Option
- Option
- Cost: $8,
- Option
- Option
- Cost: $64,
- Cost: $326,
- Option 2
Fits budget constraints
Simple to implement
Should provide reasonable
improvement in safety
Special Thanks to:
City of Portland Bureau of Transportation
- Bonneson, J., Zimmerman, K., and Brewer, M. (2002). Engineering Countermeasures to Reduce Red-Light-Running , Federal Highway Administration Repot No. FHWA/TX03/4027-
- MUTCD
- AASHTO