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Mn/DOT Winter Performance MeasuresMaintenance Quality Assurance Peer ExchangeOctober 12, 2004
Business View of theMaintenance Function
Bare Lane Indicator
Time of the event
100 %Bare
0 %Bare
Regain Time
PAVEMENTCONDITIONOVER TIME
PAVEMENT CONDITION
TIME IN HOURS
Event Start
Loss of Bare Lane
Bare Lane Regained
Event End
BareBetweenWheelPaths
Bare Pavement
Sheet:
1st Qtr
2nd Qtr
3rd Qtr
4th Qtr
East
West
North
BARE LANE INDICATOR GUIDELINES
Event DefinitionA winter weather occurrence that consumes resources necessary to prevent, minimize or regain the loss of bare lanes.Night and dawn patrol S&I operations will not trigger an event until additional crews are called in.Event can be a result of one or more of the following conditions: rain, sleet, snow, drifting snow, frost or ice.
Bare Lane Definition
All driving lanes are free of snow and ice between the outer edges of the wheel paths and have less than 1 inch of accumulation on center of the roadway. This is the condition at which most drivers feel safe and comfortable when driving at posted speeds.
Note: Cannot have snow or ice between wheel tracks.
Bare Lane Between Wheel Paths* All driving lanes must be in this condition * The entire route must be in this condition No greater than 1 inchAccumulation on center-line
Data
Snow & Ice
Weighted average labor, equipment & material costs per lane mile by service level per event
October 15, 2003 through February 29, 2004
UCCost/LnMi/Avg RegainRCCost/LnMi/Avg RegainPCost/LnMi/Avg Regain
DistrictEventTimeDistrictEventTimeDistrictEventTimeUCRCPSSCAll
D1 -40.495.00D1 -28.488.70D1 -21.9012.20D1 - $40.49D1 - $28.48D1 - $21.90D1 - $16.75D1 - $116.94D1 - $30.14
D2 -48.343.00D2 -26.345.30D2 -26.377.00D2 - $48.34D2 - $26.34D2 - $26.37D2 - $28.51D2 - $0.00D2 - $27.59
D3A -31.939.80D3A -30.8510.30D3A -27.2412.00D3A - $31.93D3A - $30.85D3A - $27.24D3A - $26.10D3A - $0.00D3A - $29.13
D3B -47.222.80D3B -38.483.90D3B -19.457.80D3B - $47.22D3B - $38.48D3B - $19.45D3B - $27.12D3B - $59.71D3B - $42.75
D4 -32.734.60D4 -24.356.60D4 -21.7510.00D4 - $32.73D4 - $24.35D4 - $21.75D4 - $20.87D4 - $0.00D4 - $24.94
DM -74.492.30DM -34.542.10DM -0.00DM - $74.49DM - $34.54DM - $0.00DM - $0.00DM - $89.12DM - $80.35
D6E -44.486.00D6E -35.816.80D6E -30.678.70D6E - $44.48D6E - $35.81D6E - $30.67D6E - $29.55D6E - $45.47D6E - $35.98
D6W -51.857.50D6W -42.928.40D6W -28.7611.00D6W - $51.85D6W - $42.92D6W - $28.76D6W - $0.00D6W - $47.97D6W - $44.30
D7E -76.936.20D7E -53.818.40D7E -48.4510.10D7E - $76.93D7E - $53.81D7E - $48.45D7E - $40.40D7E - $0.00D7E - $56.48
D7W -49.022.50D7W -56.394.40D7W -40.234.60D7W - $49.02D7W - $56.39D7W - $40.23D7W - $55.06D7W - $0.00D7W - $51.32
D8 -97.504.60D8 -37.416.70D8 -31.257.80D8 - $97.50D8 - $37.41D8 - $31.25D8 - $26.77D8 - $0.00D8 - $34.37
State -50.265.00State -35.967.00State -26.679.20State - $50.26State - $35.96State - $26.67State - $25.45State - $112.93State - $42.05
SCost/LnMi/Avg RegainSCCost/LnMi/Avg RegainAllCost/LnMi/Avg Regain
DistrictEventTimeDistrictEventTimeDistrictEventTime
D1 -16.7528.70D1 -116.942.30D1 -30.1411.80
D2 -28.519.00D2 -0.00D2 -27.596.30
D3A -26.1017.30D3A -0.00D3A -29.1311.00
D3B -27.1210.60D3B -59.712.20D3B -42.753.70
D4 -20.8714.80D4 -0.00D4 -24.948.30
DM -0.00DM -89.122.00DM -80.352.10
D6E -29.559.20D6E -45.472.90D6E -35.987.00
D6W -0.00D6W -47.974.00D6W -44.308.20
D7E -40.4016.70D7E -0.00D7E -56.488.60
D7W -55.065.50D7W -0.00D7W -51.324.10
D8 -26.778.50D8 -0.00D8 -34.377.30
State -25.4518.10State -112.932.20State -42.057.80
D1 - $40.49
D2 - $48.34
D3A - $31.93
D3B - $47.22
D4 - $32.73
DM - $74.49
D6E - $44.48
D6W - $51.85
D7E - $76.93
State - $50.26
D8 - $97.50
D7W - $49.02
D1 - $28.48
D2 - $26.34
D3A - $30.85
D3B - $38.48
D4 - $24.35
DM - $34.54
D6E - $35.81
D6W - $42.92
D7E - $53.81
State - $35.96
D8 - $37.41
D7W - $56.39
D1 - $21.90
D2 - $26.37
D3A - $27.24
D3B - $19.45
D4 - $21.75
DM - $0.00
D6E - $30.67
D6W - $28.76
D7E - $48.45
State - $26.67
D8 - $31.25
D7W - $40.23
D1 - $16.75
D2 - $28.51
D3A - $26.10
D3B - $27.12
D4 - $20.87
DM - $0.00
D6E - $29.55
D6W - $0.00
D7E - $40.40
State - $25.45
D8 - $26.77
D7W - $55.06
D1 - $116.94
D2 - $0.00
D3A - $0.00
D3B - $59.71
D4 - $0.00
DM - $89.12
D6E - $45.47
D6W - $47.97
D7E - $0.00
State - $112.93
D8 - $0.00
D7W - $0.00
D1 - $30.14
D2 - $27.59
D3A - $29.13
D3B - $42.75
D4 - $24.94
DM - $80.35
D6E - $35.98
D6W - $44.30
D7E - $56.48
State - $42.05
D8 - $34.37
D7W - $51.32
UC
5
3
9.8
2.8
4.6
2.3
6
7.5
6.2
2.5
4.6
5
D1 - $40.49
D2 - $48.34
D3A - $31.93
D3B - $47.22
D4 - $32.73
DM - $74.49
D6E - $44.48
D6W - $51.85
D7E - $76.93
State - $50.26
D8 - $97.50
D7W - $49.02
UC Best Perf
Avg $ Cost/LnMi/Event
Avg Regain Time (Hrs.)
Urban Commuter - Best PerformanceRegain Time & Cost Per Event Winter 2003-04
RC
8.7
5.3
10.3
3.9
6.6
2.1
6.8
8.4
8.4
4.4
6.7
7
D1 - $28.48
D2 - $26.34
D3A - $30.85
D3B - $38.48
D4 - $24.35
DM - $34.54
D6E - $35.81
D6W - $42.92
D7E - $53.81
State - $35.96
D8 - $37.41
D7W - $56.39
RC Best Perf
Avg $ Cost/LnMi/Event
Avg Regain Time (Hrs)
Rural Commuter - Best PerformanceRegain Time & Cost Per Event Winter 2003-04
P
12.2
7
12
7.8
10
0
8.7
11
10.1
4.6
7.8
9.2
D1 - $21.90
D2 - $26.37
D3A - $27.24
D3B - $19.45
D4 - $21.75
D6E - $30.67
D6W - $28.76
D7E - $48.45
State - $26.67
D8 - $31.25
D7W - $40.23
P Best Perf
Avg $ Cost/LnMi/Event
Avg Regain Time (Hrs)
Primary Collector - Best PerformanceRegain Time & Cost Per Event Winter 2003-04
S
28.7
9
17.3
10.6
14.8
0
9.2
0
16.7
5.5
8.5
18.1
D1 - $16.75
D2 - $28.51
D3A - $26.10
D3B - $27.12
D4 - $20.87
D6E - $29.55
D7E - $40.40
State - $25.45
D8 - $26.77
D7W - $55.06
S Best Perf
Avg $ Cost/LnMi/Event
Avg Regain Time (Hrs)
Secondary Collector - Best PerformanceRegain Time & Cost Per Event Winter 2003-04
SC
2.3
0
0
2.2
0
2
2.9
4
0
0
0
2.2
D1 - $116.94
D3B - $59.71
DM - $89.12
D6E - $45.47
D6W - $47.97
State - $112.93
SC Best Perf
Avg $ Cost/LnMi/Event
Avg Regain Time (Hrs)
Super Commuter - Best PerformanceRegain Time & Cost Per Event Winter 2003-04
All
11.8
6.3
11
3.7
8.3
2.1
7
8.2
8.6
4.1
7.3
7.8
D1 - $30.14
D2 - $27.59
D3A - $29.13
D3B - $42.75
D4 - $24.94
DM - $80.35
D6E - $35.98
D6W - $44.30
D7E - $56.48
State - $42.05
D8 - $34.37
D7W - $51.32
All Best Perf
Avg $ Cost/LnMi/Event
Avg Regain Time (Hrs)
All Road Classes - Best PerformanceRegain Time & Cost Per Event Winter 2003-04
WMSWork Management SystemWork Planning SystemWork Order ProgramPerformance IndicatorsCompletion Reports
WMS ReportsTotal Labor, Equipment, and MaterialsCosts per Lane MileTotal Material UsageTotal Equipment Costs
Reports include labor, equipment, and material for all maintenance activities by job number
Raw Data
Winter Severity Index
1997-19981998-19991999-20002000-2001
DistrictSnow EventsFreezing Rain EventsSnow Amount (inches)Storm Duration (hours)Snow EventsFreezing Rain EventsSnow Amount (inches)Storm Duration (hours)Snow EventsFreezing Rain EventsSnow Amount (inches)Storm Duration (hours)Snow EventsFreezing Rain EventsSnow Amount (inches)Storm Duration (hours)
D163.009.0078.5010.8460.009.0087.8011.0951.007.0056.309.5457.004.0087.1513.54
D227.006.00103.0013.8317.004.0091.0015.0214.003.0080.007.5926.009.0048.0013.05
D3A23.003.0049.0013.8727.003.0052.0010.8515.003.0032.009.0837.008.0060.5013.89
D3B24.004.0051.5010.7925.005.0053.5011.9915.003.0031.109.7217.0010.0056.5012.44
D418.004.0036.1014.4418.004.0042.6013.4224.003.0036.0010.9849.0011.0060.0013.50
Metro53.004.0045.008.3937.005.0056.5011.7623.005.0036.2010.4448.008.0075.8013.00
D6A29.004.0038.4012.5320.004.0044.9013.4225.006.0025.608.8929.006.0065.6014.94
D6B33.002.0032.757.9631.002.0049.0013.7828.004.0034.508.8929.009.0043.0016.86
D7E21.005.0033.2010.0318.002.0034.5011.5714.002.0024.408.2218.002.0052.0019.31
D7W31.004.0048.0014.1921.004.0038.0015.4417.004.0035.007.3523.006.0065.5019.31
D825.003.0050.0015.0616.005.0044.0012.8814.003.0036.008.6618.004.0060.0023.47
Max63.009.00103.0015.0660.009.0091.0015.4451.007.0080.0010.9857.0011.0087.1523.47
Avg.31.554.3651.4011.9926.364.2753.9812.8421.823.9138.839.0331.917.0061.2815.76
2001-20022002-20032003-2004
DistrictSnow EventsFreezing Rain EventsSnow Amount (inches)Storm Duration (hours)Snow EventsFreezing Rain EventsSnow Amount (inches)Storm Duration (hours)Snow EventsFreezing Rain EventsSnow Amount (inches)Storm Duration (hours)
D127.508.5084.0015.5246.0014.5052.5010.0333.006.00106.0014.95
D219.006.0040.0016.0810.005.0038.0011.6023.003.0060.0012.25
D3A23.005.0054.0029.0527.0011.0027.008.9923.002.0070.0013.41
D3B26.000.0063.5013.0026.0010.0032.0010.5225.006.0050.0014.25
D425.004.0056.0015.9027.005.0035.0013.6829.002.0084.0016.96
Metro33.002.0065.508.0033.002.0035.002.3223.003.0066.3010.03
D6A23.006.0030.7010.5922.004.0030.008.9420.007.0048.4012.87
D6B9.004.0023.0012.4319.009.0022.509.2820.006.0038.5016.38
D7E15.0019.0020.5015.4217.004.0023.0011.1813.002.0042.0021.63
D7W13.005.0046.0014.3920.006.0036.008.3116.002.0060.0027.28
D823.002.0090.0015.6720.006.0025.0011.3519.002.0045.0017.68
Max33.0019.0090.0029.0546.0014.5052.5013.6833.007.00106.0027.28
Avg.21.505.5952.1115.1024.276.9532.369.6522.183.7360.9316.15
Raw Index = 10 * (SE/63) + 5.9 * (FR/19) + 8.5 * (AMT/106) + 9.4 * (DUR/29.05)
Winter Severity Index = Raw Index / .338
WSI Table
Winter Severity Index*
DistrictWinter
1997-19981998-19991999-20002000-20012001-20022002-20032003-2004
D166.967.952.964.155.557.060.5
D255.947.635.644.439.329.439.5
D3A38.538.226.152.456.037.842.1
D3B37.540.526.542.539.739.142.8
D434.535.133.160.343.938.751.6
Metro47.346.634.060.340.527.938.9
D6A38.436.631.849.033.729.739.6
D6B32.741.233.548.225.331.439.7
D7E31.929.622.141.144.127.838.6
D7W43.237.327.050.335.431.449.7
D840.834.926.248.849.031.738.4
Statewide42.541.431.751.042.034.743.8
*Index ranges from 0-100
D1
66.855490343242.5006000156
67.892352027841.4035753284
52.871297265331.6964407747
64.081187494451.037021797
55.509953373242.0472476117
56.9811606134.7088717068
60.469747477743.7603891405
D1
Statewide
Season
Winter Severity Index
District 1 Winter Severity Index by Season
D2
55.868100647342.5006000156
47.626804408141.4035753284
35.576532457131.6964407747
44.359458645251.037021797
39.318772289842.0472476117
29.410152002634.7088717068
39.519375072743.7603891405
D2
Statewide
Season
Winter Severity Index
District 2 Winter Severity Index by Season
D3
38.460570883537.49341605142.5006000156
38.159609252540.505042898141.4035753284
26.084839576126.484015347531.6964407747
52.376237194742.484236277851.037021797
56.016609198239.720431084542.0472476117
37.797581681939.060198174134.7088717068
42.083615654342.756986141443.7603891405
D3A
D3B
Statewide
Season
Winter Severity Index
District 3 Winter Severity Index by Season
D4
34.516435319942.5006000156
35.082041177841.4035753284
33.079301738731.6964407747
60.275794292651.037021797
43.92262667642.0472476117
38.673149435434.7088717068
51.621283062743.7603891405
D4
Statewide
Season
Winter Severity Index
District 4 Winter Severity Index by Season
Metro
47.272576126442.5006000156
46.631979390941.4035753284
33.977606443231.6964407747
60.319823904351.037021797
40.532978211942.0472476117
27.859341192734.7088717068
38.88872715243.7603891405
Metro
Statewide
Season
Winter Severity Index
Metro Winter Severity Index by Season
D6
38.39935793132.72492363642.5006000156
36.566935496641.212620442641.4035753284
31.836889223933.519780022531.6964407747
48.997028315648.229538559851.037021797
33.735078588525.257740065842.0472476117
29.682351006931.413248107834.7088717068
39.626906815539.719722438343.7603891405
D6A
D6B
Statewide
Season
Winter Severity Index
District 6 Winter Severity Index by Season
D7
31.934132569543.205317976442.5006000156
29.551851837237.333385027541.4035753284
22.070137604626.998328367431.6964407747
41.113423888150.339173079351.037021797
44.125516083735.387927760642.0472476117
27.817995174831.400898249234.7088717068
38.61392120749.702128003143.7603891405
D7E
D7W
Statewide
Season
Winter Severity Index
District 7 Winter Severity Index by Season
D8
40.776278687342.5006000156
34.876706653241.4035753284
26.162120474931.6964407747
48.831338115251.037021797
48.99209039642.0472476117
31.701513139634.7088717068
38.36186752143.7603891405
D8
Statewide
Season
Winter Severity Index
District 8 Winter Severity Index by Season
Key Points CoveredWhat is an event.Reporting eventsBare lane definitionReporting bare lanesCleanup operations and prioritiesRecording accurate informationDashboardsBare lane factors and scenarios
District Operations Performance Data Summary Report Statewide Plan and Business Plan Measures
Snapshot Mn/DOT Performance vs. Targets June 2004
Snapshot Mn/DOT Performance vs. Targets June 2004
Thank YouCurt Gobeli curtis.gobeli@dot.state.mn.us
Maintenance Web Site: www.dot.state.mn.us/maint
Night and dawn patrol examples:#1. Starts snowing at 1am Dawn patrol is performing S&I operations from 1am-5am (Plowing and Sanding) Dawn patrol calls in additional crews at 5am At 5am dawn patrol switches his time to activity 2406 This would trigger an event Event start time would be 1am#2 Lt. Scattered frost on bridge decks Dawn patrol is out performing S&I operations (sanding bridge decks) Dawn patrol completed the operations without calling in additional help This would not trigger an event.Cover