1. INTERSECTION COLLISION SUMMARY
NUMBER
COLLISION
TYPE
HOUR
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 REAR 5 P.M. DARK-LIT WET PDO
2 REAR 8 P.M. DARK-LIT WET PDO
3 REAR 3 P.M. DAY DRY INJURY C
4 TURN 3 A.M. DARK-LIT WET PDO
INTERSECTION COLLISION SUMMARY
NUMBER
COLLISION
TYPE
HOUR
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 REAR 9 A.M. DAY WET INJURY B
2 TURN 9 P.M. DARK-LIT DRY PDO
3 TURN 5 P.M. DAY UNK PDO
4 REAR 2 P.M. DAY DRY PDO
INTERSECTION COLLISION SUMMARY
NUMBER
COLLISION
TYPE
TIME
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 REAR 7 A.M. DAY UNK INJURY C
2 REAR 8 A.M. DAY DRY PDO
INTERSECTION COLLISION SUMMARY
NUMBER
COLLISION
TYPE
HOUR
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 PEDESTRIAN 6 P.M. DARK-LIT DRY INJURY B
2 TURN 12 A.M. DARK WET INJURY B
3 BACKING 4 P.M. DAY DRY INJURY C
4 FIXED OBJECT 2 P.M. DAY DRY INJURY B
5 BACKING 6 P.M. DAY WET PDO
6 PEDESTRIAN 7 A.M. DARK-LIT WET INJURY C
7 REAR 8 A.M. DAY WET PDO
8 PEDESTRIAN 2 P.M. DAY WET INJURY B
9 TURN 5 P.M. DUSK DRY PDO
10 SIDE SWIPE OVERTAKE 9 A.M. DAY ICE PDO
11 ANGLE 10 A.M. DAY DRY PDO
12 TURN 1 P.M. DAY WET INJURY C
COLLISION DIAGRAM: SW SHATTUCK
SW BEAVERTON HILLSDALE HIGHWAY - 50TH AVE. THROUGH 59TH AVE.
SEGMENT COLLISION SUMMARY
NUMBER
COLLISION
TYPE
TIME
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 REAR 1 P.M. DAY DRY PDO
2 TURN 8 A.M. DAY DRY PDO
3 REAR 8 A.M. DAWN DRY INJURY C
4 REAR 2 P.M. DAY DRY INJURY B
SEGMENT COLLISION SUMMARY
NUMBER
COLLISION
TYPE
HOUR
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 REAR 1 P.M. DAY DRY PDO
2 TURN 8 A.M. DAY DRY PDO
3 REAR 8 A.M. DAWN DRY PDO
4 REAR 2 P.M. DAY DRY PDO
SEGMENT COLLISION SUMMARY
NUMBER
COLLISION
TYPE
HOUR
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 REAR 3 P.M. DAY DRY PDO
2 REAR 5 P.M. DAY DRY PDO
3 REAR 8 A.M. DAY DRY PDO
4 REAR 12 P.M. DAY WET PDO
5 TURN 6 P.M. DUSK WET PDO
6 TURN 1 P.M. DAY WET INJURY B
7 TURN 6 P.M. DARK UNKNOWN PDO
8 REAR 4 P.M. DAY DRY INJURY C
9 TURN 6 P.M. DUSK DRY PDO
SEGMENT COLLISION SUMMARY
NUMBER
COLLISION
TYPE
HOUR
LIGHT
COND.
SURFACE
COND.
SEVERITY
1 TURN 1 P.M. DAY DRY PDO
2 SIDE SWIPE OVERTAKING 8 A.M. DAY DRY PDO
3 REAR 8 A.M. DAWN DRY PDO
LEGEND
EXISTING ROADWAY CONDITIONS
(INCLUDING MAJOR INTERSECTION)
AVERAGE DAILY TRAFFIC VOLUME 29,000 VEHICLES PER DAY
AVERAGE DAILY TRAFFIC VOLUME
(SHATTUCK)
3,400 VEHICLES PER DAY
ROADWAY SECTION CURB TO CURB
4 TRAVELING LANES (2 EASTBOUND, 2 WESTBOUND)
1 TWO WAY LEFT TURN LANE
2 BIKE LANES (1 EASTBOUND, 1 WESTBOUND)
TOTAL ROADWAY WIDTH 68 FEET
TOTAL LENGTH OF CORRIDOR 2469 FT (0.5 MILES)
POSTED SPEED 40 MPH
PUBLIC TRANSPORTATION SERVES BUS LINES 54 AND 56
TRAFFIC SIGNAL TYPE WIRE HANGING SIGNALS WITHOUT BACKPLATES
INTERSECTION SKEW 38 DEGREES
ROADWAY CONDITIONS (MINOR INTERSECTION)
ROADWAY SECTION CURB TO CURB 2 TRAVELING LANES (1 EASTBOUND, 1 WESTBOUND)
SIDEWALK COMPLETION PARTIAL (56TH), NONE (50TH AND 59TH)
MARKED CROSSWALK NONE
Characteristic
# of
Crashes
Observed
%
Expected
% P(norm)
Rear-end Collision 3 75.0% 30.6% 8.9%
3 - 6 AM 1 25.0% 1.5% 5.9%
Dark with Lighting 3 75.0% 12.9% 0.8%
Characteristic Crashes Obs % Ex % P(Norm)
Backing Collision 2 16.7% 0.8% 0.4%
Pedestrian Collision 4 33.3% 1.8% 0.0%
Wet Pavement 6 50.0% 19.7% 1.8%
Characteristic Crashes Obs % Ex % P(Norm)
Property Damage
Only 4 1 0.56 0.098
6 - 9 AM 2 0.5 0.098 0.051
Dawn 1 0.25 0.018 0.07
Characteristic Crashes Obs % Ex % P(Norm)
Rear-end Collision 2 100.0% 30.6% 9.4%
6 - 9 AM 2 100.0% 10.2% 1.0%
Characteristic Crashes Obs % Ex % P(Norm)
Crash Pattern Analysis Summary
This table summarizes observed crash patterns determined to be signifigantly
different than expected when compared to similar roadways throughout Oregon.
P(norm) indicates the likelihood that the observed pattern's due to normal variation.
50th Ave. Intersection (4 Crashes Total)
Beaverton Hillsdale Highway Near 50th Ave. (3 Crashes Total)
No Signifigant Patterns
Beaverton Hillsdale Highway Near 56th Ave. (4 Crashes Total)
59th Ave. Intersection (2 Crashes Total)
Beaverton Hillsdale Highway Near 59th Ave. (4 Crashes Total)
No Signifigant Patterns
Shattuck Intersection (12 Crashes Total)
Beaverton Hillsdale Highway Near Shattuck (9 Crashes Total)
No Signifigant Patterns
56th Ave. Intersection (4 Crashes Total)
6 - 9 AM 2 0.5 0.098 0.051
Dawn 1 0.25 0.018 0.07
Crash Category
HSM
Expected Observed
All Crashes 4.
Fatal and Injury 1.
Property Damage Only 3.
Multi-Vehicle Crashes
All Crashes 4.
Fatal and Injury 1.
Property Damage Only 3.
Rear-end 3.
Head-on 0.
Angle 1.
Sideswipe 0.
Other Multiple Veh. 0.
Single Vehicle Crashes 0.
Total 0.
Fatal & Injury 0.
Property Damage Only 0.
Fixed Object 0.
Pedestrian 0.
Bicycle 0.
Crash Category
HSM
Expected Observed
All Crashes 20.0 12.
Fatal and Injury 7.0 7.
Property Damage Only 13.0 5.
Multi-Vehicle Crashes
All Crashes 18.3 7.
Fatal and Injury 6.3 2.
Property Damage Only 12.0 5.
Rear-end 8.6 2.
Head-on 0.7 0.
Angle 5.1 2.
Sideswipe 1.0 1.
Other Multiple Veh. 2.9 2.
Single Vehicle Crashes
Total 1.1 1.
Fatal & Injury 0.3 1.
Property Damage Only 0.8 0.
Fixed Object 0.9 1.
Pedestrian 0.2 4.
Bicycle 0.3 0.
Crash Category
HSM
Expected Observed
All Crashes 4.
Fatal and Injury 1.
Property Damage Only 3.
Multi-Vehicle Crashes
All Crashes 4.
Fatal and Injury 1.
Property Damage Only 3.
Rear-end 2.
Head-on 0.
Angle 2.
Sideswipe 0.
Other Multiple Veh. 0.
Single Vehicle Crashes
Total 0.
Fatal & Injury 0.
Property Damage Only 0.
Fixed Object 0.
Pedestrian 0.
Bicycle 0.
Crash Category
HSM
Expected Observed
All Crashes 2.
Fatal and Injury 1.
Property Damage Only 1.
Multi-Vehicle Crashes
All Crashes 2.
Fatal and Injury 1.
Property Damage Only 1.
Rear-end 2.
Head-on 0.
Angle 0.
Sideswipe 0.
Other Multiple Veh. 0.
Single Vehicle Crashes
Total 0.
Fatal & Injury 0.
Property Damage Only 0.
Fixed Object 0.
Pedestrian 0.
Bicycle 0.
56th Ave. Intersection
59th Ave. Intersection
Highway Safety Manual Analysis
This table summarizes expected crashes based on Safety
Performance Functions (SPFs) developed using the Highway Safety
Manual (HSM).
These results are presented with the actual observed crashes.
50th Ave. Intersection
Shattuck Intersection
East To West
North To South
West To East
North To South
West To East
North To South
East To West
West To East
South To North
East To West
East To West
South To North
West To East
CE 450/550 TRANSPORTATION SAFETY ANALYSIS
ELI JEFFERSON
BEN CHANEY
CESILEY WILLMANN
DAVID UROWSKY
OVERALL CRASH SUMMARY DATA, 2007-2011
INJURIES AND FATALITIES CRASHES BY LOCATION TYPE
0 FATALITIES 22 INTERSECTION CRASHES
0 INJURIES OF TYPE A SEVERITY (INCAPACITATING) 20 ROADWAY STRAIGHT SECTION CRASHES
8 INJURIES OF TYPE B SEVERITY (NON-INCAPACITATING) 0 DRIVEWAY CRASHES
6 INJURIES OF TYPE C SEVERITY (PAIN-POSSIBLE INJURY)
28 PROPERTY DAMAGE ONLY CRASHES CRASHES BY COLLISION TYPE
42 TOTAL REPORTED CRASHES FROM 2007-2011 21 REAR END (50%)
9 TURNING (21%)
4 TOTAL CRASHES INVOLVING PEDESTRIANS 4 PEDESTRIAN (10%)
0 TOTAL CRASHES INVOLVING BICYCLISTS 3 ANGLE (7%)
2 SIDE SWIPE OVERTAKING (5%)
2 BACKING (5%)
1 FIXED OBJECT (2%)
Intersection with 50th Ave:
• ADA compliant curb and sidewalk on south-east side of intersection - provide continuous sidewalk network along the corridor.
• Pedestrian refuge median with zebra style crosswalk across Beaverton Hillsdale Highway – Reduce vehicle speed and increase
awareness of pedestrians as well as increase safety for pedestrians. Coincides with bus stop location.
• Pedestrian crossing warning sign - increase awareness of pedestrians
Intersection with 56th Ave:
• Signal Backplates* - to increase visibility distance and reduce rear-end collisions
Intersection with 59th Ave:
• Pedestrian refuge median with zebra style crosswalk across Beaverton Hillsdale Highway – Reduce vehicle speed and increase
awareness of pedestrians as well as increase safety for pedestrians. Coincides with bus stop locations on both sides of the highway.
Intersection with Shattuck Rd:
• Signal Backplates* - to increase visibility distance and reduce rear-end and backing collisions
• Advance stop lines along BHH* - to reduce backing and pedestrian collisions
• Extended curb on northwest corner; modified right-turn access lane west of intersection.* By eliminating the right turn lane near
the west side of the intersection, and changing the first driveway to be exit-only, right-of-way is made available to extend the curb sig-
nificantly. Curb extension reduces the distance pedestrians must travel, potentially addressing 50% of the observed pedestrian crashes.
• No right turn on red sign on southbound approach- to limit crashes from right turn movement
• Pedestrian Leading Signals - to allow pedestrians a head start
• Protected Left turn phasing - with installation of left turn lanes on Shattuck in N/S direction would reduce pedestrian collisions
Throughout the corridor:
• Improved ADA curb ramps - with high visibility truncated dome plates and separate ramps for each crossing direction. Brings
the intersections into ADA compliance, and provides increased pedestrian awareness to drivers. Also encourages correct use of cross-
walks by pedestrians by making them easier to locate.
SUGGESTED IMPROVEMENTS AND COUNTERMEASURES
CRASH PATTERN ANALYSIS SUMMARY
HIGHWAY SAFETY MANUAL ANALYSISCOLLISION DIAGRAM: SW 59TH COLLISION DIAGRAM: SW 56TH COLLISION DIAGRAM: SW 50TH