ODOT Interstate Truck Speeds - Oregon.gov Home …...Traffic Volumes on I-205 and I-84 Average...
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Review of Interstate Truck Speeds Preliminary Data and Process Doug Bish, Traffic Services Engineer March 2017
Transcript of ODOT Interstate Truck Speeds - Oregon.gov Home …...Traffic Volumes on I-205 and I-84 Average...
Review of Interstate Truck SpeedsPreliminary Data and Process
Doug Bish, Traffic Services EngineerMarch 2017
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Agenda• Why?• OARs• Investigations• Preliminary Data• Schedule
Why now?
Proposed Legislative bill to raise truck
speeds
ODOT concerned
about legislating
without data
ODOT proposed to study truck
speeds
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History
2003 ODOT Investigates
Interstate Speeds and Raises Some
2015 Legislature
Raises Speeds in
Eastern Oregon
2017 ODOT investigates
Truck Speeds
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Oregon Administrative RulesSpeed Limits on Interstates
Investigations Impacts and Issues
Public Comments
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Average and 85th
percentile
Number and rates
Curves lanes and shoulders
ADT Congestion and % Trucks
Type and Frequency
Crash RoadwaySpeeds Traffic Weather
Oregon Administrative RulesEngineering Investigations
Recommendation to OTC
Speed Zone Review Panel
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Reasonable and SafeGiven Existing Conditions
As Indicated by DataIssues Report
And Public Comment
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Anywhere the speed is currently 65 mph for cars and 55 mph for trucks
I-5: South of PortlandI-84: Troutdale to The DallesI-205: Jct. of I-5 to West Linn
Investigations
ProcessODOT Investigations
PSU Issues Report
Public Meetings
SZRP Recommendation
Commission Public Meeting on the Rule
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Vehicle Speeds on I-5 (Preliminary data)Average and 85th Percentile in 65/55 mph Sections
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58.00
60.00
62.00
64.00
66.00
68.00
70.00
72.00
18.54 69.33 112.92 119.82 124.82 158.7 199 226.5 274.72
Average Auto mph
85th Auto mph
Avg Truck mph
85th Truck mph
SalemEugeneMedford Roseburg I-205
85th Percentile Autos
85th Percentile Trucks
Average Trucks
Average Autos
Truck Crashes on I-5Crashes per mile per year
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0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
18.08 69.34 112.93 119.82 124.82 158.71 199.00 226.50 274.73
All crashes 2004
All crashes 2015
Truck Involved crashes 2004
Truck Involved crashes 2015
Truck @Fault crashes 2004
Truck @Fault crashes 2015
0.000.100.200.300.400.500.600.700.800.901.00
18.08 69.34 112.93119.82124.82158.71199.00226.50274.73
SalemEugeneMedford Roseburg I-205
Traffic Crashes on I-53 years of crashes for investigated segments
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1,029
1,553
336 258
873
1,333
137 203
PDO crashes
F&I crashes
2004All Crashes
1902
2015Truck Involved
Crashes461
2004Truck Involved
Crashes473
2015All Crashes
2886
Truck at Fault2004 46% 2015 40%
Traffic Volumes on I-5Average Vehicles per Day
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0
20,000
40,000
60,000
80,000
100,000
120,000
18.54 69.335 112.925 119.82 124.82 158.705 199 226.5 274.725
Total ADT 2004
Total ADT 2015
Truck ADT 2004
Truck ADT 2015
SalemEugeneMedford Roseburg I-205
Truck Crashes overlaid with VolumesCrashes per mile per year
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0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
18.08 69.34 112.93 119.82 124.82 158.71 199.00 226.50 274.73
SalemEugeneMedford Roseburg I-205
0
20,000
40,000
60,000
80,000
100,000
120,000
18.54 69.335 112.925 119.82 124.82 158.705 199 226.5 274.725
Truck ADTTruck Involved
Total ADTTotal Crashes
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June 2017 - SZRP make recommendations to CommissionAug 2017 - Commission make a final decision.
Nov 2016 – ODOT began investigationsFeb 2017 - PSU began an issues report.March 2017 – Public Meetings
Schedule
Thank You!
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Supplementary Slides
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Vehicle Speeds on I-205 and I-84Average and 85th Percentile (preliminary data)
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I-205 I-84
50.00
55.00
60.00
65.00
70.00
Troutdale Hood River The Dalles
Auto Avg mph
Auto 85th mph
Truck Avg mph
Truck 85th mph
50
55
60
65
70
Jct 1‐5 West Linn
Auto Avg mph
Auto 85th mph
Truck Avg mph
Truck 85th mph
65/55 Posted Sections
Truck Crashes on I-205 and I-84Crashes per mile per year
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I-205 I-84
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
Troutdale Hood River The Dalles
All Crashes 2004
All Crashes 2015
Truck Involved Crashes2004
Truck Involved Crashes2015
Truck at Fault 2004
Truck at Fault 2015
0.00
0.20
0.40
0.60
0.80
1.00
Jct 1‐5 West Linn
Truck Involved Crashes2004
Truck Involved Crashes2015
Truck at Fault 2004
Truck at Fault 2015 0.00
0.20
0.40
0.60
0.80
1.00
Troutdale Hood River The Dalles
Truck Involved Crashes2004
Truck Involved Crasehs2015
Truck at Fault 2004
Truck at Fualt 2015
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
Jct 1‐5 West Linn
All Crashes 2004
All Crashes 2015
Truck Involved Crashes2004
Truck Involved Crashes2015
Truck at Fault 2004
Truck at Fault 2015
Traffic Volumes on I-205 and I-84Average Vehicles per Day
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I-205 I-84
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
Jct 1‐5 West Linn
Total ADT 2004
Total ADT 2015
Truck ADT 2004
Truck ADT 2015
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
Troutdale Hood River The Dalles
Total ADT 2004
Total ADT 2015
Truck ADT 2004
Truck ADT 2015
