Transportation Transportation Safety Safety Initiatives in Initiatives in Phoenix Phoenix Kerry Wilcoxon, PE Kerry Wilcoxon, PE Street Transportation Street Transportation Department Department Lifesavers Conference Lifesavers Conference March 27, 2011 March 27, 2011
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Lifesavers 2011 Traffic Engineering Initiatives In Phoenix
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High Run Red Crash High Run Red Crash IntersectionsIntersections
Intersections with the most run red crashesData used for: Engineering changesRLC locationselection
Red-Light Red-Light CamerasCameras
12 Locations Approved11 Locations InstalledHistoric Crash Reduction: Total Crashes 9% Run Red Crashes 8% Fatal & Injury 19%
7th Avenue and 7th Street Reverse Lanes7th Avenue and 7th Street Reverse Lanes
7th Street started in 1982 Adams to Dunlap Ave Now McDowell to
Dunlap (7 miles)
7th Avenue &7th Street Central Phoenix
7th Avenue started in 1979 McDowell to Northern Ave.
(6 miles)
³7TH AVE
³7TH ST
Without Reverse Lanes3 Lanes NB each street650 Vehicles/Hour/Lane
Without Reverse Lanes2 Lanes SB each street650 Vehicles/Hour/Lane
7T
H S
T
SR
51
7T
H A
VE
19
TH
AV
E
16
TH
ST1
5T
H A
VE
12
TH
ST
CE
NT
RA
L A
VE
27
TH
AV
E
3R
D S
T
THOMAS RD
OSBORN RD
20
TH
ST
VAN BUREN ST
BL
AC
K C
AN
YO
N F
WY
(I-
17
)
MC DOWELL RD
OAK ST
GLENDALE AVE
DUNLAP AVE
NORTHERN AVE
INDIAN SCHOOL RD
PAPAGO FWY (I-10)
MARYLAND AVE
BETHANY HOME RD
PEORIA AVE
23
RD
AV
E
BUTLER DR
ROOSEVELT ST
3R
D A
VE
ADAMS ST
25
TH
AV
E
CAVE CR
EEK R
D
18
TH
ST
2N
D S
T
BUTLER DR
2N
D S
T
³7TH AVE
³7TH ST
With Reverse Lanes4 Lanes NB each street750 Vehicles/Hour/Lane
With Reverse Lanes3 Lanes SB each street750 Vehicles/Hour/Lane
7T
H S
T
SR
51
7T
H A
VE
19
TH
AV
E
16
TH
ST1
5T
H A
VE
12
TH
ST
CE
NT
RA
L A
VE
27
TH
AV
E
3R
D S
T
THOMAS RD
OSBORN RD
20
TH
ST
VAN BUREN ST
BL
AC
K C
AN
YO
N F
WY
(I-
17
)
MC DOWELL RD
OAK ST
GLENDALE AVE
DUNLAP AVE
NORTHERN AVE
INDIAN SCHOOL RD
PAPAGO FWY (I-10)
MARYLAND AVE
BETHANY HOME RD
PEORIA AVE
23
RD
AV
E
BUTLER DR
ROOSEVELT ST
3R
D A
VE
ADAMS ST
25
TH
AV
E
CAVE CR
EEK R
D
18
TH
ST
2N
D S
T
BUTLER DR
2N
D S
T
Crash Rates AM Reverse Lane Hours
Northern Av
Glendale Av
Bethany Home Rd
Camelback Rd
Indian School Rd
Thomas Rd
McDowell Rd
16th
St
7th
St
7th
Av
19th
Av
HI
Segment
Intersection
Northern Av
Glendale Av
Bethany Home Rd
Camelback Rd
Indian School Rd
Thomas Rd
McDowell Rd
16th
St
7th
St
7th
Av
19th
Av
HI
Segment
Intersection
Crash Rates PM Reverse Lane Hours
Common Type of Crashes2001-2005
Most Common:
All Four Streets Rear End
Most Severe:19th Av Angle 7th Av Angle 7th St Angle/Left Turn16th St Left Turn
Engineering Findings
Traffic safety on 7th Ave and 7th St Traffic safety on 7th Ave and 7th St similar similar to other arterial streetsto other arterial streetsReverse lanes carry a substantial amount Reverse lanes carry a substantial amount of of rush hour trafficrush hour trafficRemoval would result in loss of capacity Removal would result in loss of capacity with with same demandsame demandNeighborhood cut-thru routes may shiftNeighborhood cut-thru routes may shift
Quality of Life Findings
Central Neighborhoods:Central Neighborhoods:Generally in favor of removing reverse lanes
Many felt: Reverse lanes inhibit accessLanes are unsafe and signs are
confusing
Northern Neighborhoods:Northern Neighborhoods:Generally in favor of keeping reverse lanes
Many felt: Lanes are safe and reduce travel
timeReverse lane signs are
understandable
City Council Action
Form citizen Ad hoc Task Force to work with City staff to review all available studies conducted on the reverse lane issue, consider new alternatives and, through consensus, bring forth written recommendations to the City Council
Task Force Recommendations
If reverse lanes remain, the task force recommends that the City should:
Improve reverse lane signingIncluding time-of-operation lights/beacons
Increase enforcement Implement new education campaign Explore school crossing opportunities and new
bus bays Explore additional left turn opportunities at
some signalized intersections Estimated cost of changes $4-6,000,000