EVALUATION OF AN ANIMAL ACTIVATED HIGHWAY …(Electric and Barbed Wire) 2.4 m ROW Fence and ROW...
Transcript of EVALUATION OF AN ANIMAL ACTIVATED HIGHWAY …(Electric and Barbed Wire) 2.4 m ROW Fence and ROW...
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EVALUATION OF AN EVALUATION OF AN ANIMALANIMAL‐‐ACTIVATED HIGHWAY CROSSWALKACTIVATED HIGHWAY CROSSWALK
INTEGRATED WITH RETROFIT FENCINGINTEGRATED WITH RETROFIT FENCING
Jeff Gagnon
Norris Dodd Sue BoeKari OgrenKari OgrenScott SpragueRay Schweinsburg
Arizona Game and Fish Department
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PRESENTATION OBJECTIVES
•Discuss Why We Need Wildlife Crossings, Fencing and Detection Systems.
The Problem – Motorist Safety and Habitat FragmentationThe Solution – Wildlife Crossings and FencingWildlife Detection Systems as an Alternative
•Describe the Preacher Canyon crosswalk and fencingDescribe the Preacher Canyon crosswalk and fencing project components.
•Present results of 3+ years research evaluation including motorist and wildlife response.
•Discuss Constraints of Wildlife Detection Systems.
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Human Safety #1
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Cost of Wildlife-Vehicle Collisions toCost of Wildlife Vehicle Collisions to Society
Huijser et al. 2007 – Report to Congress
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Cost of Wildlife-Vehicle Collisions to Society
….If No One is Sued
Booth VS State of Arizona = >$4,000,000!
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WiWiSummer Summer
Maintain Connectivity #2
Winter Winter RangeRange
RangeRangeHH22OO
FOODFOOD 22FOODFOOD
FOODFOOD
HH22OO
FOODFOOD
COVERCOVERCOVERCOVERCOVERCOVER
HABITAT FRAGMENTATIONHABITAT FRAGMENTATION
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WiWiSummer Summer
Maintain Connectivity #2
Winter Winter RangeRange
RangeRangeHH22OO
FOODFOOD 22FOODFOOD
FOODFOODMIGRATIONMIGRATION
HH22OO
FOODFOODMIGRATION MIGRATION ROUTEROUTE
COVERCOVERCOVERCOVERCOVERCOVER
HABITAT FRAGMENTATIONHABITAT FRAGMENTATION
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We Already Know How to Address These Issues
STATE ROUTE 260 ‐ ArizonaExisting 2‐lane highway Reconstructed 4‐lane highway
Reconstruction raises issues of highway safety with increased standard (e.g., speed) and maintenance of wildlife permeability across highway
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STATE ROUTE 260 PROJECTWildlife UnderpassesWildlife Underpasses(11 of 17 completed)
Wildlife Underpasses (11)Bridges (6)
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STATE ROUTE 260 PROJECTWildlife UnderpassesWildlife Underpasses(11 of 17 completed)
Wildlife Underpasses (11)Bridges (6)
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STATE ROUTE 260 PROJECTWildlife UnderpassesWildlife Underpasses(11 of 17 completed)
Wildlife Underpasses (11)Bridges (6)
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STATE ROUTE 260 PROJECTWildlife UnderpassesWildlife Underpasses(11 of 17 completed)
Wildlife Underpasses (11)Bridges (6)
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Christopher Creek Section2004 ELK‐VEHICLE COLLISIONS (Before Fencing)2004 ELK VEHICLE COLLISIONS (Before Fencing)
51 collisions51 collisions
(11.3/km)
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Christopher Creek Section2005 ELK‐VEHICLE COLLISIONS (After Fencing)2005 ELK VEHICLE COLLISIONS (After Fencing)
8 collisions8 collisions
(1.7/km)
84% reduction in collisions
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CHRISTOPHER CREEK SECTIONP d P t F i Wildlif U f U dPre- and Post-Fencing Wildlife Use of Underpasses
400
450
300
350
400
/ dee
r
Completion
150
200
250
al e
lk / Completion
of Fencing
50
100
150
Tota
0
Mar-0
4May
-04
Jul-0
4Sep
-04
Nov-04
Jan-
05Mar
-05
May-05
M Ma J Se No Ja M Ma
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WILDLIFE UNDERPASS VIDEO MONITORINGState Route 260
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FUNNEL CONCEPTFUNNEL CONCEPTWILDLIFEWILDLIFE
FUNNEL CONCEPTFUNNEL CONCEPT
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FUNNEL CONCEPTFUNNEL CONCEPTWILDLIFEWILDLIFE
FUNNEL CONCEPTFUNNEL CONCEPT
FENCESFENCES
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FUNNEL CONCEPTFUNNEL CONCEPTWILDLIFEWILDLIFE
FUNNEL CONCEPTFUNNEL CONCEPT
FENCESFENCES
CROSSING CROSSING CROSSING CROSSING STRUCTURESTRUCTURE
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FUNNEL CONCEPTFUNNEL CONCEPTWILDLIFEWILDLIFE
FUNNEL CONCEPTFUNNEL CONCEPT
FENCESFENCES
CROSSING CROSSING CROSSING CROSSING STRUCTURESTRUCTURE
HIGHWAYHIGHWAY
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W KWe Know What WorksWorks……
Why Even Consider WildlifeWildlife Detection?
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Wildlife Detection Systems in Lieu of Wildlife Wildlife Detection Systems in Lieu of Wildlife P St tP St tPassage StructuresPassage Structures
CompromiseCompromise ––••Topography Topography -- CostCostp g p yp g p y••Timeline of ConstructionTimeline of Construction
ComplementComplement‐‐
••When used in conjunction with When used in conjunction with wildlife crossing structureswildlife crossing structures
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Wildlife Underpasses and Fencing Attempt to Modify Only Wildlife Behaviorto Modify Only Wildlife Behavior
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Animal Detection Systems Attempt to Modify Only Driver BehaviorModify Only Driver Behavior
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Animal Activated “Crosswalks” Attempt to M dif B th Wildlif d M t i t B h iModify Both Wildlife and Motorist Behavior
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Animal Activated “Crosswalks” Attempt to M dif B th D i d Wildlif B h i
Preacher Canyon wildlife fence and Modify Both Driver and Wildlife Behaviorcrosswalk enhancement project
evaluation- State Route 260
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AFTER‐RECONSTRUCTION ELK‐VEHICLE COLLISIONSPreacher Canyon Section
1414
16
y
12
10
12 1212
collision
s
2001‐2006Before‐
9
8
10
lk‐veh
icle
ReconstructionMean = 11.6
4
6
No. of e
0
2
02001 2002 2003 2004 2005 2006
Year
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ELK CROSSINGS and INTERCEPTION BY FENCINGPreacher Canyon Section
120
140
Bridge (1)Original project fencing (24 % i i i )
Preacher Canyon Section
ssin
gs 100
120 Bridge (1)
Underpass (2)
(24 % crossing interception)
TEA‐21 enhancement fencing (75 % crossing interception)
no. e
lk c
ros
60
80
Wei
ghte
d
40
0
20
20 30 40 50 60
0.16-km highway segment20 30 40 50 60
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PREACHER CANYON FENCING TREATMENTS
ElectroBraid® Modified ROW Fence – 2.4m
(Electric and Barbed Wire)
2.4 m ROW Fence and ROW Extensions
(Barbed wire)
2.4 m Wire Mesh Ungulate‐Proof
Fence
2.4 m Wire Mesh Ungulate‐Proof Fence
(2001)
Project resulted in fencing entire 3‐mile (5 km) corridor……..
EastWestPreacherRoadway Animal EastUnderpass
(MP 262.9)
West Underpass
(MP 262.8)
Preacher Canyon Bridge
(MP 261.0)
yDetection System
(MP 259.9)
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PREACHER CANYON FENCING TREATMENTS
8’Wire Mesh Ungulate‐Proof Fence
(2000)
EastWest EastUnderpass
(MP 262.9)
West Underpass
(MP 262.8)
West Underpass East Underpass
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PREACHER CANYON FENCING TREATMENTS
8’ ROW Fence and ROW Extensions
(Barbed wire)
Raised fence with new T‐posts
Applied 2 right‐of‐way (ROW) barbed‐wire pp g yfence retrofit treatments
Raised fence with T‐post extensions
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PREACHER CANYON FENCING TREATMENTS
8’ Wire Mesh Ungulate‐Proof
Fence
Preacher Canyon Bridge
Preacher Wildlife Escape Ramp atCanyon Bridge
(MP 261.0)
Wildlife Escape Ramp at Preacher Canyon Bridge
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PREACHER CANYON FENCING TREATMENTS
ElectroBraid® Modified ROW Fence – 2.4 m
(Electric and Barbed Wire)
Applied right‐of‐way (ROW) electric fence retrofit treatmentfence retrofit treatment
•Solar powered on north side• AC powered on south side
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PREACHER CANYON FENCING TREATMENTS
ElectroBraid® Modified ROW Fence – 2.4 m
(Electric and Barbed Wire)
2.4 m ROW Fence and ROW Extensions
(Barbed wire)
2.4 m Wire Mesh Ungulate‐Proof
Fence
2.4 m Wire Mesh Ungulate‐Proof Fence
(2001)
Animal DetectionAnimal Detection System at Crosswalk
(MP 259.9)
Needed to address potential “end run” effect at the western terminus of the fencing
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PREACHER CANYON CROSSWALK CONFIGURATION
Defined “crosswalk”
lkCrosswalk
DefinedCrosswalk
ZoneZone
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CROSSWALK ANIMAL DETECTION SYSTEM•Infrared cameras detect animal•Infrared cameras detect animal movement within detection zones
•Integrated with target acquisition ft t l t d isoftware to analyze movement and size
of objects (to minimize “false positives”)
•If “target” acquired, radio signals sent to warning signs
Camera Detection ZoneCamera Detection Zone
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THERMAL IMAGING CAMERA INTEGRATED WITH TARGET ACQUISITION SOFTWARE
Target tracking box ‐
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THERMAL IMAGING CAMERA INTEGRATED WITH TARGET ACQUISITION SOFTWARE
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THERMAL IMAGING CAMERA INTEGRATED WITH TARGET ACQUISITION SOFTWARE
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THERMAL IMAGING CAMERA INTEGRATED WITH TARGET ACQUISITION SOFTWARE
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THERMAL IMAGING CAMERA INTEGRATED WITH TARGET ACQUISITION SOFTWARE
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THERMAL IMAGING CAMERA INTEGRATED WITH TARGET ACQUISITION SOFTWARE
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PREACHER CANYON ENHANCEMENT PROJECTMotorist Alert Signsg
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PREACHER CANYON ENHANCEMENT PROJECTMotorist Alert Signsg
Variable Message SiSign
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PREACHER CANYON ENHANCEMENT PROJECTMotorist Alert Signsg
Variable Message SiSign
Crosswalk warning sign
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PREACHER CANYON CROSSWALK CONFIGURATION
Motorist Warning Signage Layout
175 450
450 m
450 m175 m 450 m
175 m450 m 175 m450 m
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INDEPENDENT PROJECT EVALUATIONINDEPENDENT PROJECT EVALUATION
System performance and reliabilityA i l D t ti S t d Si•Animal Detection System and Signage
•Fencing and other components
Motorist response to warning signage•Vehicle speedAl t•Alertness
Wildlife‐Vehicle Collisions•Preacher Canyon Section•Adjacent unfenced section
Highway permeability
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SYSTEM PERFORMANCE AND RELIABILITY
•We assessed animal detection system reliability by y y ymaking periodic status checks at crosswalk
275 status checks made
System operational 98% of the time (269 visits)
System inoperable 2% of time (6 visits)System inoperable 2% of time (6 visits)
l d % f h ( )False positives occurred 4% of the time (12 visits)
Functioning Properly 93.4%
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CROSSWALK VIDEO CAMERA SURVEILLANCE
Independent Infrared Video Camera Systems
Pole-mounted camerasTriggersTriggers
InfraredIlluminators Recording
Devices
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Testing System Performance and Reliability
8’ fence
Detection Zone
8 fence
Detection Zone
8’ fence
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Testing System Performance and Reliability
8’ fence8 fence
50’
50’
8’ fence
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Testing System Performance and Reliability
8’ fence8 fence
50’Is The System Activated When Wildlife Are WithinWildlife Are Within 50 ft Of Roadway?
Lighted Indicator Lets Us Know When
50’The Signs Are On?
8’ fence
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SYSTEM PERFORMANCE AND RELIABILITY
801 total animals of 8 species were recorded at the crosswalk by video surveillance
Groups (≥1) hi
Times signs i d
Times signs i d f
No sign i i
Percentage
crosswalk by video surveillance
Species
approaching w/in 50’ roadway
activated before 50ft of roadway
activated after 50ftof
roadway
activation (false
negatives)
Percentage of time signs activated
Elk 168 137 28 3 97%
White‐tailed 65 59 5 1 97%White tailedDeer
65 59 5 1 97%
Total 233 196 33 4 97%
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Modifying Driver Behavior – How Did We Do?
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MOTORIST RESPONSE TO WARNING SIGNAGE
(From Huijser et al. 2006)
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MOTORIST RESPONSE TO WARNING SIGNAGE
(From Huijser et al. 2006)
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ASSESSING MOTORIST SPEED RESPONSE
•Installed permanent traffic countersp
•Conducted 256 paired 15‐min samples
C d d ith d ith t•Compared average speeds with and without signs activated to assess motorist response
b•Compared average speeds by year to assess motorist habituation
•22,064 total vehicles counted
Installing Piezo Strip traffic counter at crosswalk
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35 Average with signsAverage with signs
MOTORIST RESPONSE TO SIGNAGE ‐ SPEED
30
35
signs offi
Average with signs off = 53.2 mph (85.8 km/hr)
Average with signs on = 44.3 mph (71.3 km/hr)
20
25
nute
Inte
rval
s signs on
15
mbe
r of 1
5-M
in
5
10
Num
036 38 40 42 44 46 48 50 52 54 56 58 60 62 64
Average Speed (MPH)
A significant 17% reduction in average speed occurred when signs were activated (t = 1.97, df = 256, P < 0.001)
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ASSESSING MOTORIST ALERTNESS RESPONSE
•Hid and counted vehicles approaching crosswalk and assessed if motorists applied brakesand assessed if motorists applied brakes
•Conducted 286 paired 15‐min samples with and ith t i i ti t dwithout warning signs activated
•Compared the proportion of braking vehicles with and without signs activated
•8,089 total vehicles counted
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MOTORIST RESPONSE TO SIGNS ‐ ALERTNESS
Warning sign Vehicles d
Proportion b kstatus counted braking
N t ti t d ( ff) 3 941 0 08Not activated (off) 3,941 0.08
Activated (on) 4,157 0.68
Odds of motorists exhibiting a braking response were 21:1 with warning signs activated compared to when they were not activated
( 2 3206 df 1 P 0 001)(χ2=3206, df = 1, P < 0.001)
There was no difference between years (2007 and 2008)
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ELK‐VEHICLE COLLISIONS WITH FENCING AND CROSSWALKPreacher Canyon Sectiony
97% reduction inelk‐vehicle collisions
(not including 2009 with no collisions))
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ELK‐VEHICLE COLLISIONS WITH FENCING AND CROSSWALKPreacher Canyon Sectiony
97% reduction inelk‐vehicle
There was NO significant change in elk‐vehicle collisions on the adjacent Lion Springs Section– thus there was no “displacement” in collisions from the Preacher Canyon Section
collisions
(not including 2009 with no collisions)
in collisions from the Preacher Canyon Section
)
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Cost of Wildlife-Vehicle Collisions to Society
Elk-Vehicle Collisions =
Society
Huijser et al. 2007 – Report to Congress
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Cost of Wildlife-Vehicle Collisions to Society
Elk-Vehicle Collisions =
Society
Huijser et al. 2007 – Report to Congress
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Cost of Wildlife-Vehicle Collisions to Society
Elk-Vehicle Collisions = $18,561/ Collision
Society
Huijser et al. 2007 – Report to Congress
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Cost of Wildlife-Vehicle Collisions to Society
Elk-Vehicle Collisions = $18,561/ Collision
Society
$220,00/ Year on Average in Study Area
Huijser et al. 2007 – Report to Congress
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Modifying Wildlife Behavior – How Did We Do?
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CROSSWALK VIDEO CAMERA SURVEILLANCE
Independent Infrared Video Camera Systems
Pole-mounted camerasTriggersTriggers
InfraredIlluminators Recording
Devices
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What Happened Once Animals Approached the Road?
8’ fence
Detection Zone
8 fence
Detection Zone
8’ fence
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What Happened Once Animals Approached the Road?
8’ fence
Detection Zone
8 fence
?Detection Zone
8’ fence
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Elk (N=523)E t Hi h R WEnter Highway R-W at Detection Zone
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Elk (N=523)E t Hi h R WEnter Highway R-W at Detection Zone
Successful Crossing32%
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CROSSWALK CROSSINGS BY TIME AND TRAFFIC VOLUMEBY TIME AND TRAFFIC VOLUME
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CROSSWALK CROSSINGS BY TIME AND TRAFFIC VOLUMEBY TIME AND TRAFFIC VOLUME
86% of crossings occurred when traffic volumes averaged 32 vehicles/ hour
Traffic volumes averaged 308 vehicles/hour over 24 hours for the same time period
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PROBABILITY OF CROSSWALK CROSSING BY TRAFFIC VOLUME
0.14
BY TRAFFIC VOLUME
0.1
0.12
Cro
ssin
g
elkdeer
Elk
0 06
0.08
Succ
esfu
l C Elk
0.04
0.06
obab
ility
of
White‐tailed deer
0
0.02Pro White tailed deer
0 2 4 6 8 10 12
Vehicles / minute
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Elk (N=523)E t Hi h R WEnter Highway R-W at Detection Zone
Successful Crossing Unsuccessful Crossing32% 68%
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Elk (N=523)E t Hi h R WEnter Highway R-W at Detection Zone
Successful Crossing Unsuccessful Crossing32% 68%
Left R-W viaLeft R W via same path
48%
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Unsuccessful Crossings
8’ fence
Detection Zone
8 fence
Detection Zone
8’ fence
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Unsuccessful Crossings
8’ fence
Detection Zone
8 fence
Detection Zone
8’ fence
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Elk (N=523)E t Hi h R WEnter Highway R-W at Detection Zone
Successful Crossing Unsuccessful Crossing32% 68%
Left R-W via Entered R-W viaLeft R W via same path
48%
Entered R W via Gap in Fence
20%
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Wildlife Entering R‐W Via Gap at Roadway
8’ fence
Detection Zone
8 fence
Detection ZoneDangerous Situation –Motorists Can Encounter
8’ fence
Wildlife Without Warning
8 fence
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Wildlife Entering R‐W Via Gap at Roadway
8’ fence
Detection Zone
8 fence
Detection ZoneDangerous Situation –Motorists Can Encounter
8’ fence
Wildlife Without Warning
8 fence
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Wildlife Entering R‐W Via Gap at Roadway
8’ fence
Detection Zone
8 fence
Detection ZoneDangerous Situation –Motorists Can Encounter
8’ fence
Wildlife Without Warning
8 fence
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ElectroMat Installation in July 2010
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Gap at Road Closed With ElectroMat
8’ fence
Detection Zone
8 fence
Detection ZoneEVALUATION THROUGH 2015
8’ fence8 fence
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Gap at Road Closed With ElectroMat
8’ fence
Detection Zone
8 fence
Detection ZoneEVALUATION THROUGH 2015
8’ fence8 fence
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Gap at Road Closed With ElectroMat
8’ fence
Detection Zone
8 fence
Detection ZoneEVALUATION THROUGH 2015
8’ fence8 fence
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ELK HIGHWAY PERMEABILITY COMPARISONPreacher Canyon SectionPreacher Canyon Section
•Permeability determined from GPS telemetry
no. highway crossings
no. approaches to within 0.25 mi Passage rate =
Before Fencing and Crosswalk
Mean passage rate =
0 35 i / h0.35 crossings/approach
After Fencing and Crosswalk
0.09 crossings/approach (‐73%)
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ELK HIGHWAY PERMEABILITY COMPARISONPreacher Canyon SectionPreacher Canyon Section
•Permeability determined from GPS telemetry
no. highway crossings
no. approaches to within 0.25 mi Passage rate = Mean spacing between passage structures
= 1.5 mi (2.4 km)
Before Fencing and Crosswalk
1.5 mi (2.4 km)2.5 times greater spacing than
Christopher Creek Section (Passage Rate = 0.82)
Mean passage rate =
0 35 i / h0.35 crossings/approach
After Fencing and Crosswalk
0.09 crossings/approach (‐73%)
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0.12
0.14 Before Fencing and Crosswalk (n = 35 elk)
0.06
0.08
0.10
rtio
n of
Cro
ssin
gs
CHANGE IN DISTRIBUTION
0 00
0.02
0.04Prop
or
OF GPS ELK CROSSINGS
0.00
15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 550.10 mile segment
0.12
0.14
0.16
s
Preacher C
After Fencing and Crosswalk (n = 17 elk)
lk nyon
Valley
0.06
0.08
0.10
ortio
n of
Cro
ssin
gs Canyon SectionCr
ossw
a
Preacher Can
Little Green
V0.00
0.02
0.04Prop P L
Unfenced section
15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55
0.10 mile segment
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CROSSWALK ARE A COST‐EFFECTIVE ALTERNATIVETO A PASSAGE STRUCTURE
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CONSTRAINTS
•Effectiveness of Animal Detection Systems Constrained by (assuming a fully functioning system?):
1 Traffic Volumes1. Traffic Volumes 2. Vehicle Speeds3. Individual Species4 Spacing (Full RADS VS4. Spacing (Full RADS VS Xwalk))
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More information on the research Evaluation:
Gagnon, J. W., N. L. Dodd, S. Sprague, K. Ogren, g , , , p g , g ,and R. E. Schweinsburg. 2010. Preacher Canyon wildlife fence and crosswalk enhancement project evaluation- State Route 260. Finalproject evaluation State Route 260. Final project report submitted to Arizona Department of Transportation, Phoenix, Arizona, USA.
…..OR Google “Arizona CElk Crosswalk”
More information on the Project Components: Visit the ElectroBraid Booth