Wilston Grange Precinct Study
Transport Engineering Studies
Wilston Grange Precinct Transport
Study
Technical Report
April 2015
Prepared for
Transport Network Operations Transport Planning & Strategy Prepared by
Transport Engineering Studies Group
Transport Planning & Strategy -
Document1
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Wilston Grange Precinct Study
Transport Engineering Studies
6.4 Traffic Crash History
A review of the traffic crash history for the study area road network was undertaken using
data from TMR’s Web Crash database for crashes from 1st January 2007 to 31st December
2011 fully
within the study area, excluding those crashes intersecting with Lutwyche Road, Enoggera
Road and Stafford Road, with a total of 16 crashes recorded over 5 years.
In addition to the above mentioned intersection, the intersections with significant crash
numbers within the study area include:




Cox Road / Green Tce / Newmarket Road (14 crashes);
Lamont Road / Newmarket Road (10 crashes);
Silvester Street / Noble Street / Newmarket Road (9 crashes); and
Grange Road / Raymont Road (6 crashes).
The road sections with the top five highest crash numbers occurred at the following locations:





Grange Road between Myrtle Street and Dennis Street (6 crashes);
Newmarket Road between Laurel Avenue and Finsbury Street (4 crashes);
Newmarket Road between Cox Road and Noble Street (4 crashes);
Kedron Brook Road between Macgregor Street and Hewitt Street (4 crashes);
and
Horace Street between Lutwyche Road and Moriac Street (3 crashes).
The crash nature of an accident is further defined by the Definitions for Coding Accidents
(DCA); crash costs based on DCA code have been developed by Transport & Main Roads
(TMR). As part of the federally funded Blackspot program, costs of crashes to the community
associated with the crash nature (DCA code) have been developed by TMR and those
relevant to the study corridor are summarised in Table 0.1.
Crash costs contained in Table 0.1 have been used to calculate the highest community cost
by DCA group. Results specific to the study area are illustrated in Figure 0.2 and presented
in Table 0.2 and Table 0.3.
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Wilston Grange Precinct Study
Transport Engineering Studies
Figure 0.1 : Crashes Mapped by Crash Severity (DCA code)
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Wilston Grange Precinct Study
Transport Engineering Studies
Table 0.1 : Average Crash Cost by DCA Group
DCA
Group
Crash DCA Description
Average
Crash Cost
1
Vehicles adjacent approach : through/right/left
(101/101/102/103/104/105/106/107/108/109)
Vehicles adjacent approach : other (100)
$200,500
2
Vehicles opposite approach : head on (201)
Vehicles overtaking : head on (501)
$489,300
3
Vehicles opposite approach : through/right/left
(202/203/204/205)
$221,800
4
Vehicles same direction : rear (301)
Vehicles same direction : left/right rear (302/303)
$153,700
5
Vehicles same direction : lane change right/ left (306/307)
Vehicles same direction : lane side swipe (305)
Vehicles overtaking : cutting in (504)
$167,700
6
Vehicles same direction : right/left side swipe (308/309)
$165,200
8
Vehicles manoeuvring : leaving driveway (406)
Vehicles manoeuvring : leaving parking (401)
Vehicles manoeuvring : entering from footway (408)
$194,700
10
Vehicles manoeuvring : parking (402)
Vehicles manoeuvring : reversing (402)
Vehicles on path : parked (601)
Vehicles on path : car door (604)
Vehicles on path : accident or broken down (608)
$135,100
12
Pedestrian : near side vehicle hit from right (001)
Pedestrian : hit emerging behind vehicle (002)
Pedestrian : far side vehicle hit from left (003)
Pedestrian : play/work/stand/lie on carriageway (004)
Pedestrian : hit walking/facing with traffic (005/006)
Pedestrian : hit by vehicle entering/leaving driveway (007)
Pedestrian : on footway hit by vehicle on footway (008)
Pedestrian : hit while boarding/alighting (009)
$516,000
16
Off path-straight : left/right off carriageway (703/704)
Off path-straight : mounts traffic island (708)
Passengers & miscellaneous : hit railway crossing furniture
(904)
$184,100
17
Off path-straight : out of control on carriageway (705)
$280,400
19
Off path-curve : off carriageway right/left bend hit object
(803/804)
$296,100
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Wilston Grange Precinct Study
Transport Engineering Studies
Figure 0.2 : Crash Costs by DCA Code
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Wilston Grange Precinct Study
Transport Engineering Studies
Table 0.2 : Five Highest Intersection Crash Cost to Community by Crash Nature
Intersection
DCA1
DCA3
DCA4
DCA5
DCA6
DCA1
2
DCA1
9
TOTAL
Cost
Newmarket Rd / Wilston Rd
1
12
1
0
0
0
2
16
$4,434,911
Newmarket Rd / Cox Rd / Green
Tce
2
10
1
0
0
1
0
14
$3,655,580
Newmarket Rd / Lamont Rd
8
0
1
1
0
0
0
10
$2,143,234
Newmarket Rd/Silvester St/Noble
St
1
4
4
0
0
0
0
9
$1,875,720
Grange Rd / Raymont Rd
2
3
0
0
1
0
0
6
$1,426,154
Table 0.3 : Five Highest Road Section Crash Cost to Community by Crash Nature
Road Section
DCA2
DCA3
DCA4
DCA5
DCA8
DCA1
0
DCA1
2
DCA1
6
DCA1
7
DCA1
9
TOTAL
Cost
Newmarket Rd
between Laurel Ave & Finsbury St
1
0
1
1
0
1
0
0
0
0
4
$1,109,018
Grange Rd
Between Myrtle St & Dennis St
0
0
3
1
1
0
0
0
1
0
6
$1,078,695
Kedron Brook Rd
Between Lincoln St & Ellison Rd
0
0
0
0
0
0
1
0
0
1
2
$904,960
Grange Rd
Between Howard St & Bega St
0
0
1
0
0
0
0
2
0
0
3
$833,561
Newmarket Rd
Between Cox Rd & Noble St
0
2
2
0
0
0
0
0
0
0
4
$824,922
A summary of the intersection crashes and potential remedial actions is included in Table 0.4.
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Wilston Grange Precinct Study
Transport Engineering Studies
Table 0.4: Crash Summary
Location
Newmarket
Rd /
Wilston Rd
Document1
Crash Diagram
Details
No
Potential
Remedial
Actions
1
Crash
Number
20100385545
Date and
Time
Thu 8Apr-2010
5pm
DCA
Code
202
2
20700114581
Fri 15Jun-2007
7pm
3
20700297077
4
DCA
Crash Nature
Crash Severity
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Property
Damage Only
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Property
Damage Only
Sat 15Sep2007
10pm
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Property
Damage Only
20700311901
Sat 22Sep2007
8am
804
OFF PATH-CURVE:
OFF CWAY LT BEND
HIT OBJ (804)
High fixed
obstruction or
temp object
Property
Damage Only
5
20700326518
Sat 29sep-2007
8am
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Property
Damage Only
6
20800101956
Tue 12Feb2008
8am
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Medical
Treatment
7
20800422072
Sat 5Jul-2008
2pm
104
VEH’S OPPOSITE
APPROACH: THRURIGHT(104)
Angle
Minor injury
8
20900295997
Sat 14Feb2009
5pm
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Medical
Treatment
9
20900295997
Sat 18Apr-2009
10am
303
VEH’S SAME
DIRECTION: RIGHT
REAR (303)
Rear end
Minor injury
10
20110131389
Wed 10Nov2010
9am
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Medical
Treatment
11
20100658982
Tue 13Jul-2010
6pm
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Property
Damage
12
20100752286
Fri 13Aug2010
6pm
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Medical
Treatment
Final Draft
Amend
phasing to
include a
controlled
right turn
phase from
Newmarket
Road into
Wilston
Road.
Page 7
Wilston Grange Precinct Study
Newmarket
Rd / Cox
Rd / Green
Tce
Document1
Transport Engineering Studies
13
20100894679
Thu 30Sep2010
5pm
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Hospitalisation
14
20100804564
Tue 31Aug2010
12pm
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Hospitalisation
15
20100685005
Wed 21Jul-2010
2pm
202
VEH’S OPPOSITE
APPROACH: THRURIGHT(202)
Angle
Property
damage only
16
20110561169
Tue June
2011
803
OFF PATH-CURVE:
OFF CWAY RT BEND
HIT OBJ (804)
Hit object
Fatal
No
1
Crash
Number
20700098580
Date and
Time
Wed 23-May2007 1pm
DCA
Code
202
2
20700171414
Tue 17-Jul2007 12pm
3
20700198091
4
DCA
Crash Severity
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(202)
Minor injury
101
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(101)
Medical
Treatment
Mon 30-Jul2007 5pm
104
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(104)
Medical
Treatment
20800381523
Tue 17-Jun2008 7pm
202
OFF PATH-CURVE: OFF CWAY
LT BEND HIT OBJ (202)
Medical
Treatment
5
20900334604
Sat 2-May2009 7pm
202
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(202)
Medical
Treatment
6
20900588550
Sat 1-Aug2009 12pm
202
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(202)
Property Damage
Only
7
20900764116
Thu 1-Oct2009 8pm
202
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(202)
Minor injury
8
20900943725
Fri 2-Oct2009 8pm
202
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(202)
Medical
Treatment
9
20900943725
Tue 17-Aug2009 6pm
202
VEH’S SAME DIRECTION:
RIGHT REAR (202)
Medical
Treatment
10
20100762682
Tue 17-Aug2010 10am
1
VEH’S OPPOSITE APPROACH:
THRU-RIGHT(001)
Medical
Treatment
11
20110310541
Sat Apr 2011
202
VEH’S OPPOSITE APPROACH:
THRU-RIGHT
Medical
Treatment
12
20110335135
Thur April
2011
303
VEH’S OPPOSITE APPROACH:
RIGHT-REAR
Medical
Treatment
13
20110524023
Thur Jun
2011
202
VEH’S OPPOSITE APPROACH:
THRU-RIGHT
Hospitalisation
Final Draft
Consider
creating
protected
right
turn
pockets and
fully
controlling
right turns
Page 8
Wilston Grange Precinct Study
Newmarket
Rd /
Silvester St
/ Noble St
Document1
Transport Engineering Studies
14
20110535141
Sun Jun 2011
202
No
1
Crash
Number
20700234020
Date and
Time
Fri 17-Aug2007 5pm
DCA
Code
202
2
20700275258
Wed 5-sep2007 5pm
3
20800194931
4
VEH’S OPPOSITE APPROACH:
THRU-RIGHT
DCA
Medical
Treatment
Crash Severity
VEH’S OPPOSITE
APPROACH: THRU-RIGHT
(202)
Minor injury
301
VEH’S SAME DIRECTION:
REAR END (301)
Medical Treatment
Tue 25-Mar2008 4pm
301
VEH’S SAME DIRECTION:
REAR END (301)
Medical Treatment
20800625185
Thus 2-Oct2008 7am
202
VEH’S OPPOSITE
APPROACH: THRU-RIGHT
(202)
Property damage
only
5
20800776902
Mon 1-Dec2008 2pm
202
VEH’S OPPOSITE
APPROACH: THRU-RIGHT
(202)
Minor injury
6
20900681257
Thu 6-Aug2009 9am
202
VEH’S OPPOSITE
APPROACH: THRU-RIGHT
(202)
Hospitalisation
7
20900681257
Tue 1-sep2009 10am
302
VEH’S SAME DIRECTION:
LEFT REAR (302)
Medical Treatment
8
20110953109
Wed Oct 2011
101
VEH’S ADJACENT
APPROACH: THRU-THRU
Medical Treatment
9
20110198415
Sat Mar 2011
301
VEH’S SAME DIRECTION:
REAR END (301)
Minor injury
Final Draft
Consider
fully
protecting
right turns
during peak
periods and
increase
visibility to
traffic
signals.
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Wilston Grange Precinct Study
Transport Engineering Studies
Newmarket
Rd /
Lamont Rd
No
Grange Rd
/ Raymont
Rd
Document1
Crash
Number
Date
Time
and
DCA
code
1
20700084505
Thu 3-May2007 1pm
2
20700487494
Mon 10-Dec2007 4pm
104
3
20100218529
Fri 5-Red2010 11am
104
4
20100541405
Wed 2-FJun2010 2pm
104
5
20100438810
Tue 27-Apr2010 6pm
104
6
20100180515
Wed 27-jan2010 12pm
104
7
20110214755
Sat March
2011
104
8
20110306347
9
20110979734
10
20110430096
NO
Fri April 2011
Thu Nov
2011
Mon
May
2011
104
104
303
305
1
Crash
number
2070085365
Date
and
time
Fri
4-May2007 6pm
DCA
Code
202
2
20700102493
Tue 29-May2007 10am
104
3
2070024933
Tue 21-Aug2007 11am
106
4
20700333114
309
5
20700416685
Tue
2-Oct2007 6pm
Fri
9-Nov2007 7pm
6
20110255659
Thur
2011
202
Final Draft
Mar
202
DCA
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S ADJACENT
APPROACH: THRU-RIGHT
(104)
VEH’S SAME DIRECTION :
RIGHT REAR
VEH’S SAME DIRECTION:
LANE SIDE SWIPE
DCA
VEH’S
OPPOSITE
APPROACH:
THRU-RIGHT
(202)
VEH’S
ADJACENT
APPROACH:
THRU-RIGHT
(104)
VEH’S
ADJACENT
DEIRECTION:
LEFT-RIGHT
(106)
VEH’S SAME DIRECTION:
LEFT TURN S/SWIPE (309)
VEH’S
OPPOSITE
APPROACH:
THRU-RIGHT
(202)
VEH’S
OPPOSITE
APPROACH: THRU-RIGHT
Crash
Severity
Medical
treatment
Property
damage only
Minor injury
Ban right turn
from Lamont
Road or
ideally
signalise
intersection
(allowing all
movements)
to ensure
safety for
pedestrians,
cyclists and
vehicles.
Hospitalisation
Hospitalisation
Medical
treatment
Hospitalisation
Hospitalisation
Medical
treatment
Medical
treatment
Crash
severity
Property
damage only
Medical
Treatment
Property
Damage Only
Amend
phasing to
include a
controlled
right turn
phase from
Grange Road
into Raymont
Road.
Medical
Treatment
Property
Damage only
Hospitalisation
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Wilston Grange Precinct Study
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Transport Engineering Studies
Final Draft
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Wilston Grange Precinct Study
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Transport Engineering
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