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Individual bicycle crashes are presented in Table 33 and Table 34.

Table 33: Crashes involving Bicycles at Half and Stop Group (2002-2011)

Location Int

Legs Collision Type Severity Vehicle Street Bicycle Street Description

Ha

lf G

ro

up

SE Milwaukie

SE Tolman 3 R-TURN INJ-B Minor Major Bicycle Riding Opposite Traffic on Sidewalk SE Tacoma

SE 15th 4 ANGL INJ-C Major Minor Driver had sun in eyes. Bicycle had ROW SE 15th

SE Shaver 4 L-TURN PDO Major Minor Vehicle Did Not Yield ROW SE 17th

SE Umatilla 4 L-TURN PDO Minor Minor Vehicle Did Not Yield ROW NE 42nd

NE Alberta Ct 4 ANGL INJ-B Minor Major Vehicle Did Not Yield ROW SW Barbur

SW Hooker 3 L-TURN INJ-B Major Major

Bicycle passed veh improperly, struck by opposing L-Turn vehicle

St

op

G

rou

p N Lombard _{N Leavitt} 4 L-TURN PDO Major Major Vehicle Did Not Yield _ROW

SE Tacoma

SE 16th 4 ANGL INJ-B Major Minor Bicycle Did Not Yield ROW No Lighting on Bicycle SE 17th

SE Linn 4 L-TURN R-TURN INJ-A Major Minor Vehicle took L-Turn sharp and struck R-turning bike

The crash that happened at SE Tacoma and SE 16th in the stop group where the bicyclist did not presumably have a safe opportunity to cross the major street and thus took a risk is the type of crash that half-signals and signalized intersections are designed to prevent.

Table 34 shows bicycle crash results comparing half-signal and fully signalized groups.

Table 34: Crashes Involving Bicycles at Half and Signal Group (2002-2011)

Location Int

Legs Collision Type Severity Vehicle Street Bicycle Street Description Half

Group NE Sandy NE 50th 4 ANGL PDO Minor Major Bicycle Riding Opposite Traffic on Street

Si gn al G ro up SE Bybee

SE 17th 4 L-TURN INJ-B Major Major Vehicle Did Not Yield ROW SE Bybee

SE 17th 4 L-TURN INJ-B Major Major Vehicle Did Not Yield ROW N Lombard

N Wabash 4 ANGL INJ-B Minor Major Vehicle Did Not Yield ROW NE US Grant

NE 33rd 4 ANGL INJ-C Minor Major Vehicle Disregard Signal

Pedestrian crashes are presented in Table 35.

Table 35: Pedestrian Crash Detail at Matched Stop Group (2002-2011)

Location Int

Legs Severity (# Ped) Vehicle Movement Ped Location or Crossing Rd Failure to Yield Right of Way Fault

Ha

lf G

ro

up

N Fesenden

N Burr 4 INJ-B Backing Sidewalk Driver

N Lombard

N John 4 INJ-B Left Turn from MNR Inside X-Walk Driver

N Lombard

N John 4 INJ-B Left Turn from MNR Inside X-Walk Driver

SE 17th

SE Umatilla 4 INJ-B (2) Left-Turn from MNR Inside X-Walk Driver

St op G rou p SE Division

SE 58th 3 INJ-B Right-Turn from MNR Minor Rd (no X-Walk) Driver SE Foster

SE 54th 6 FAT Straight on Major Major Rd (no X-Walk) Driver N Lombard

N Curtis 3 INJ-C Straight on Major Major Rd (no X-Walk) Ped between Intersections SE 17th

SE Linn 4 INJ-A Straight on Major Major Rd (no X-Walk) Ped did not yield ROW SE 39th

SE Francis 4 INJ-B Straight on Minor Minor Rd (no X-Walk) Driver SE 39th

SE Francis 4 INJ-B Left-Turn from MNR Major Rd (no X-Walk) Driver

The three crashes that occur at half-signalized intersections are the types of pedestrian crashes that the FHWA is concerned with in their Final Rule (16) where it is claimed that motorists on the minor road do not give adequate attention to pedestrians crossing the street. However, this type of crash is not exclusive to half-signals as the same type of crash happened at 39th _{and Francis at a minor stop controlled intersection.}

It does appear that the signalization at half-signals reduces the possibility of what

appear to be more severe crashes along the major road. We do not have enough data to obtain statistically significant results on this hypothesis.

Crashes involving pedestrians at half-signals and the signalized control group are shown in Table 36.

Table 36: Pedestrian Crash Detail at Matched Signalized Group (2002-2011)

Location Int

Legs Severity (# Ped) Vehicle Movement Ped Location or Crossing Rd Failure to Yield Right of Way Fault

Ha

lf G

ro

up

N Lombard

N John 4 INJ-B Left Turn from MNR Inside X-Walk Driver N Lombard

N John 4 INJ-B Left Turn from MNR Inside X-Walk Driver NE Sandy

NE 50th 4 INJ-C Left-Turn from MNR Inside X-Walk Driver NE Sandy

NE 50th 4 INJ-C Left-Turn from MNR Inside X-Walk Driver NE Sandy

NE 50th 4 INJ-B (2) Left-Turn from MNR Inside X-Walk Driver Sig

Group NE US Grant NE 33rd 4 INJ-B Straight on Major Inside X-Walk (on Major) Pedestrian disregard signal

In the signalized comparison group, all pedestrian crashes occurred as a vehicle was turning left from the minor street. The fully-signalized group does not have these types of crashes in this sample. There may be evidence that these left-turn from the minor street crashes are more of a risk at half-signalized intersections. However, there is not enough data to test this hypothesis and also caution that all of the observed crashes at half-signals in this sample occurred at two intersections.