Performance Measures-Maintenance Operations
Bare Pavement System
Final Report
For the Winter 2001/2002
Prepared By: Bob Heidrich
Maintenance Office
July 2002
Bare Pavement System-Final Report 2001/2002
Introduction
As part of the Ministry’s Performance Measuring Project, the Maintenance Office considered
numerous measures in the summer of 1997. After presentation of identified measures to
Management Board and to the Maintenance Operations Committee, the decision to accept the
length of time to clear highways after winter storms was made.
This lead to the development of the Bare Pavement System (BPS) designed to capture the
required information. The BPS implementation in the fall of 1997 consisted of system
development, testing and staff training.
A final report was completed in August 1998 on results achieved during the 1997/98 winter and
the recommendation to change the percentage used to determine lost and regained bare
pavement from 50% to 90% was adopted for the 1998/99 winter season.
Bare Pavement System
The Bare Pavement System captures the required information to provide the length of time
required to reach bare pavement after winter storms. This consists of a data collection sheet
which records the time and date a storm begins and ends, the time and date bare pavement is
lost and regained and the type of storm.
This information is captured by patrol/highway for all storms. The data collection sheets are sent
to the District Offices for inputting into the Bare Pavement module of MMIS. From this database,
reports can be generated. Information obtainable from these reports are the length of storms,
amount of time bare pavement is lost, average time to regain bare pavement and the number of
events by type.
The information can be sorted by highway and patrol, class of highway and type of storm.
Implementation Notes
The Bare Pavement System (BPS) was introduced to MMIS Coordinators or nominated District
custodians of the system in September 1997. At this time, they were explained the concept and
process and the computer software required for data input was installed on their workstation. A
new database was created on each District DDIS server to accept the new information.
The responsibility of gathering the information was deemed to be that of the patrol supervisor.
Completion of Bare Pavement information was also added to existing and upcoming Area
Maintenance Contracts.
In 2001 the bare pavement system became a module within MMIS.
2
Bare Pavement System-Final Report 2001/2002
2001/2002 Data
A quick review of the District databases was conducted in February 2002 to ensure the data was
captured accurately by MO areas and AMC contractors and accurately inputted into the
databases. Some corrections were made to obvious errors but overall, the data seemed
consistent with participation by all areas. Bare Pavement data follows the MMIS data acceptance
process to ensure data integrity.
The data presented in this report include the provincial average time to regain bare pavement on
Class 1, 1B, 2 and 3 highways and District averages by patrol. Also provided is the average
percentage of time the service level class standard was met and exceeded.
The number of events recorded increased from 4,810 in 1999-2000 to 8,244 in 2000-2001 due
to a severe winter in many areas, enhanced training on the system and increased participation.
The total events for 2001/2002 is 5995 which reflects a mild winter.
Chart #1
Chart #1 shows the average length of time to regain bare pavement on Class 1 highways by
District. The 2001-2002 provincial average was 2.3 hours. Of the 8 Districts reporting, 4 were
below the provincial average and 4 above the average.
Chart #2
Chart #2 shows the average length of time to regain bare pavement on Class 1B highways by
District. The 2001-2002 provincial average was 3.5 hours. Of the 10 Districts reporting, 6 were
below the provincial average and 4 were above the average.
3
Bare Pavement System-Final Report 2001/2002
Chart #3
Chart #3 shows the average length of time to regain bare pavement on Class 2 highways by
District. The 2001-2002 provincial average was 5.1 hours. 4 of the 6 Districts reporting were
below the provincial average and 2 were above the provincial average.
Chart #4
Chart #4 shows the average length of time to regain bare pavement on Class 3 highways by
District. The 2001-2002 provincial average was 6.5 hours. 2 districts where below the average
while 2 districts were above the average however, New Liskeard was only slightly above the
provincial average.
Chart #5
Chart #5 shows the percentage of time bare pavement was achieved prior to the end of the
storm, within the class standard of 8 hours and over the 8 hour standard for all Class 1
highways.
Provincially, bare pavement was achieved prior to the end of the storm in 15.8% of the time. This
average was inflated by a 32.7% average in Chatham, 47.4% in London and 32.9% in Owen
Sound.
Bare Pavement was achieved within the class standard 95.8% of the time. Bare pavement was
not achieved within the class standard 4.2% of the time.
This chart also shows the percentage of events on Class 1 highways.
Chart #6
Chart #6 shows the percentage of time bare pavement was achieved prior to the end of the
storm, within the class standard of 16 hours and over the 16 hour standard for all Class 1B
highways.
Provincially, bare pavement was achieved prior to the end of the storm in 18.2% of the time. This
average was inflated by a 39.7% average in London.
Bare pavement was not achieved within the class standard in 2.7% of the time. This equates to
a 97.3% average of time bare pavement was regained within the 16 hour standard.
This chart also shows the percentage of events on Class 1B highways.
4
Bare Pavement System-Final Report 2001/2002
Chart #7
Chart #7 shows the percentage of time bare pavement was achieved prior to the end of the
storm, within the class standard of 24 hours and over the 24 hour standard for all Class 2
highways.
Provincially, bare pavement was achieved prior to the end of the storm in 13.8% of the time.
Bare pavement was not achieved within the class standard 7.1% of the time. This equates to a
92.9% average of time bare pavement was regained within the 24 hour standard.
This chart also shows the percentage of events on Class 2 highways.
Chart #8
Chart #8 shows the percentage of time center bare pavement was achieved prior to the end of
the storm, within the class standard of 24 hours and over the 24 hour standard for all Class 3
highways.
Provincially, bare pavement was achieved prior to the end of the storm in 17.3% of the time.
Bare pavement was not achieved within the class standard in 7.8% of the time. This equates to
a 92.2% average of time center bare pavement was regained within the 24 hour standard.
This chart also shows the percentage of events on Class 3 highways.
Chart #9
Chart # 9 shows the percentage of time bare pavement was achieved within the level of service
Class Standard for all highway classes by District. This is the performance measure provided to
Management Board annually. The target for the 2001-2002 was set at 90%. The provincial
average for 2001-2002 is 95.2%.
This chart also shows the percentage of events on all highways for each district.
5
Chart #1
Bare Pavement Data 2001/2002-Class 1 Hwys
4.5
4
3.5
Hours
3
2.5
2
1.5
1
0.5
0
Chatham
London
Central
Owen Sound
Ottawa
Average Time To Regain Bare Pavement
Bancroft
Huntsville
Sudbury
Provincial Average
6
Chart #2
Bare Pavement Data 2001/2002-Class 1B Hwys
5
4.5
4
3.5
Hours
3
2.5
2
1.5
1
0.5
0
Chatham
London
Owen
Sound
Ottawa
Bancroft
Huntsville
Average Time To Regain Bare Pavement
New
Liskeard
Sudbury
Thunder
Bay
Sault Ste
Marie
Provincial Average
7
Chart #3
Bare Pavement Data 2001/2002-Class 2 Hwys
9
8
7
Hours
6
5
4
3
2
1
0
Ottawa
Bancroft
Huntsville
New Liskeard
Average Time To Regain Bare Pavement
Sudbury
Thunder Bay
Provincial Average
8
Chart #4
Bare Pavement Data 2001/2002-Class 3 Hwys
14
12
Hours
10
8
6
4
2
0
Huntsville
New Liskeard
Average Time To Regain Bare Pavement
Sudbury
Thunder Bay
Provincial Average
9
Chart #5
Bare Pavement Data 2001/2002-Class 1 Hwys
100
100
99.4
96.5
95
96.2
91.7
90.3
90
84.2
80
70
60
%
47.4
50
40
30.2
32.9
32.7
30
20
16
10
5.5
0
15.8
14.1
9.7
8.3 9.5
5.4
5
14.5
13
12.2
3.5
0.6
1.9
3.8
5.7
6.1
6.5
0
Central
Chatham
London
Owen Sound
Ottawa
Bancroft
Huntsville
Sudbury
% Of Time Bare Pavement Regained Prior to the End of Precipitation
% of Time Bare Pavement Regained Within Class Standard of 8 Hours
% of Time Bare Pavement Not Regained Within Class Standard of 8 Hours
% of Class 1 Events
Provincial Average BP Regained Prior to the End of Precipitation
Provincial Average BP Regained Within Class Standard of 8 Hours
Provincial Average BP not Regained Within Class Standard of 8 Hours
10
Chart #6
Bare Pavement Data 2001/2002-Class 1B Hwys
110
100
99.1
100
97.5
98.7
95.7
92.6
97.7
94.8
96.5
95.3
90
80
70
60
%
50
39.7
40
30
24
19.7
18.8
20
14.9
11.8
8.8
10
0
1.8
4.1
0.9
10.2
9.1
2.5
25.2
23.2
4.3
1.8
14.7
8.2
7.47.1
5.2
1.3
2.3
16.8
14.7
6.5
3.5
4.7
0
Chatham
London
Owen
Sound
Ottawa
Bancroft
Huntsville
New
Liskeard
Sudbury
Thunder
Bay
Sault Ste
Marie
% Of Time Bare Pavement Regained Prior to the End of Precipitation
% of Time Bare Pavement Regained Within Class Standard of 16 Hours
% of Time Bare Pavement Not Regained Within Class Standard of 16 Hours
% of Class 1B Events
Provincial Average BP Regained Prior to the End of Precipitation
Provincial Average BP Regained Within Class Standard of 16 Hours
Provincial Average BP not Regained Within Class Standard of 16 Hours
11
Chart #7
Bare Pavement Data 2001/2002-Class 2 Hwys
120
99.1
98
100
99.5
96.7
96.9
85.9
80
% 60
40
25.1
23.1
20
18
20
14.1
9.1
2
24.5
23.5
21.6
13.4
8.8
7.4
4.6
3.3
0.9
0.5
3.1
0
Ottawa
Bancroft
Huntsville
New Liskeard
Sudbury
Thunder Bay
% Of Time Bare Pavement Regained Prior to the End of Precipitation
% of Time Bare Pavement Regained Within Class Standard of 24 Hours
% of Time Bare Pavement Not Regained Within Class Standard of 24 Hours
% of Class 2 Events
Provincial Average BP Regained Prior to the End of Precipitation
Provincial Average BP Regained Within Class Standard of 24 Hours
Provincial Average BP not Regained Within Class Standard of 24 Hours
12
Chart #8
Bare Pavement Data 2001/2002-Class 3 Hwys
100
93.3
90
93.3
91.4
85.3
80
70
60
% 50
46.3
40
30
26.7
25.3
20
20
10
16.4
14.7
13
7
4.4
6.7
6.7
8.6
0
Huntsville
New Liskeard
Sudbury
Thunder Bay
% Of Time Bare Pavement Regained Prior to the End of Precipitation
% of Time Bare Pavement Regained Within Class Standard of 24 Hours
% of Time Bare Pavement Not Regained Within Class Standard of 24 Hours
% of Class 3 Events
Provincial Average BP Regained Prior to the End of Precipitation
Provincial Average BP Regained Within Class Standard of 24 Hours
Provincial Average BP not Regained Within Class Standard of 24 Hours
13
Chart #9
Bare Pavement Data 2001/2002-All Hwy Classes
120
100
80
% 60
40
20
0
Central
Chatham
London
Owen
Sound
Ottawa
% of Time Level of Service Met
Bancroft
Huntsville
% of Provincial Events
New
Liskeard
Sudbury
Thunder
Bay
Sault Ste
Marie
Provincial Average
14
Central Region
All highways in Central Region are classified as Class 1. The Region average to regain bare pavement for 2001-2002 for Class 1 was
2.6 hours which is 0.3 hour above the provincial average of 2.3 hours. The Region percentage of time bare pavement was regained
within the Class Standard of 8 hours was 95%.
There were major variances among patrol averages for number of events, average length of events, average length bare pavement
was lost and average time to regain bare pavement.
383 events were recorded in Central Region. This represents 30.2% of all class 1 events in the province and 6.4% of all events in the
province. The patrol average in Central region is 47 events per patrol.
The average length of an event was 10.1 hours and on average, bare pavement was lost for 11.3 hours.
2001-2002 Central Region Class 1 Hwys
Observations
5
Patrols 6 recorded 3 events, which is well below the Region average of 47.
2)
Patrol 2 recorded 75 events, which is well above the Regional average of 47.
3)
Patrol 6 average time to regain bare pavement is 4.2 hours, which is above the Regional
average. This is attributed to recording only 3 events of which 1 exceeded the Class
Standard of 8 hours. Patrol 8 also had 3 events exceed the class standard, which
increased their average time to regain bare pavement.
4.2
3.7
4
Hours
1)
3
3
2.5
2.1
1.7
2
2.1
1.6
1
0
1
2
3
4
5
6
7
8
Patrols
Average Time to Regain Bare Pavement
Region Average
15
London District
Hours
All highways in London District are classified as Class 1 or Class 1B. The District
average to regain bare pavement for 2001-2002 for Class 1 was 0.6 hours, which is 1.7
hours below the provincial average of 2.3 hours. The District average for Class 1B was
1.2 hours which falls 2.3 hours below the provincial average of 3.5 hours. The District
percentage of time bare pavement was regained within the Class Standard of 8 hours
for Class 1 Hwys was 99.4%. The District percentage of time bare pavement was
regained within the Class Standard of 16 hours for Class 1B Hwys was 99.1%.
2001/2002 London District Class 1 Hwys
3
2.5
2
1.5
1
0.5
0
1.1
0.3
0.1
4
9
0.8
16
32
Patrols
Average Time to Regain Bare Pavement
There were some major variances among patrol average length of an event, number of
recorded events and average length of time bare pavement was lost for both Class 1
and Class 1B highways.
District Average
263 events or 4.4% of all provincial events were recorded in London District equating to
an average of 32 events per patrol. 154 events were recorded on Class 1 highways and
109 events were recorded on Class 1B highways representing 12.2% of Class 1 events
and 4.1% of Class1B events.
The average length of an event was 18.7 hours and on average, bare pavement
was lost for 16.8 hours.
2001/2002 London District Class 1B Hwys
4
1)
The following patrols were well below the average number of events for London
District: Patrol 4A – 2 Events
Patrol 04 – 3 Events
Patrol 11 – 1 Event
Hours
Observations
2.9
3
2
2
1
0.8
0.5
0
0
9
11
33
4A
4B
Patrols
Average Time to Regain Bare Pavement
District Average
16
2001/2002 Chatham District Class 1 Hwys
Chatham District
2
1.5
All highways in Chatham District are classified as Class 1 or Class 1B. The District average to
regain bare pavement for 2001-2002 for Class 1 was 0.6 hours which falls 1.7 hours below the
provincial average of 2.3 hours. The District average for Class 1B was 1.1 hours which falls 2.4
hours below the provincial average of 3.5 hours. The District percentage of time bare pavement
was regained within the Class Standard of 8 hours for Class 1 Hwys was 100%. The District
percentage of time bare pavement was regained within the Class Standard of 16 hours for
Class 1B Hwys was 100%.
Hours
1.5
1
0
0
1
District Average
2001/2002 Chatham District Class 1B
Hwys
The average length of an event was 8 hours and on average, bare pavement
was lost for 7.7 hours.
2
Hours
Patrol 1 recorded 4 events for Class 1 highways and 4 events for Class 1B highways for a
total of 8 events. This is well below the district average of 29 events per patrol.
6
Average Time to Regain Bare Pavement
117 events or 2% of all provincial events were recorded in Chatham District equating to an
average of 29 events per patrol. 68 events were recorded on Class 1 highways and
49 events were recorded on Class 1B highways representing 5.4% of Class 1 events and 1.8% of
Class1B events.
1)
2
Patrols
There were major variances in the number of recorded events.
Observations
0.4
0.5
1.6
1.6
1.5
1
0.5
0
0
1
2
3
Patrols
Average Time to Regain Bare Pavement
District Average
17
Owen Sound District
2001/2002 Owen Sound Class 1 Hwys
6
Hours
All highways in Owen Sound District are classified as Class 1 or Class 1B. The District
average to regain bare pavement for 2001-2002 for Class 1 was 3.3 hours which is 1 hour
above the provincial average of 2.3 hours. The District average for Class 1B was 3.6 hours
which is 0.1 hours above the provincial average of 3.5 hours. The District percentage of time
bare pavement was regained within the Class Standard of 8 hours for Class 1 Hwys was
91.7%. The District percentage of time bare pavement was regained within the Class
Standard of 16 hours for Class 1B Hwys was 97.5%.
4
4.8
3.6
3.5
3.3
2.9
2.8
8
9
2.1
2
0
4
5
There were major variances among patrol averages to regain bare pavement on Class 1B
highways from a low of 0 to a high of 6.9 hours.
6
7
10
Patrols
Average Time to Regain Bare Pavement
District Average
There were some major variances among patrol events.
364 events or 6.1% of all provincial events were recorded in Owen Sound District equating to
an average of 30 events per patrol. 120 events were recorded on Class 1 highways and
244 events were recorded on Class 1B highways representing 9.5% of Class 1 events and
9.1% of Class1B events.
The average length of an event was 19.6 hours and on average, bare pavement
was lost for 21.8 hours.
2001/2002 Owen Sound Class 1B Hwys
Observations
The following patrols were well below the average number of events per patrol:
Patrol 8 – 11 Events
Patrol 9 – 16 Events
Patrol 10 – 7 Events
Patrol 23 – 1 Event
6.9
5.5
6
Hours
1)
8
4.5
3.9
4
2.9 3.2
3.7
3.7
3.7
3.2
2.5
2
0
0
1
2
3
4
5
6
7
8
9
10
11
23
Patrols
Average Time to Regain Bare Pavement
District Average
18
2001/2002 Ottawa District Class 1 Hwys
4
Ottawa District
There were no major variances in data.
300 events or 5% of all provincial events were recorded in Ottawa District equating
to an average of 30 events per patrol. 203 events were recorded on Class 1
highways, 47 events were recorded on Class 1B highways and 50 events were
recorded on Class 2 highways. This represents 16% of Class 1 events, 1.8% of
Class1B events and 4.6% of Class 2 events.
Hours
2
1
0
24
44
45
46
51
52
53
54
Patrols
Average Time to Regain Bare Pavement
District Average
2001/2002 Ottawa District Class 1B Hwys
4
Hours
Highways in Ottawa District are classified as Class 1, 1B or 2. The District average
to regain bare pavement on Class 1 highways for 2001-2002 was 2.2 hours which
falls 0.1 hour below the provincial average of 2.3 hours. The District average for
Class 1B highways was 1.8 hours which falls 1.7 hours below the provincial
average of 3.5 hours. The District average for Class 2 highways was 2.6 hours
which falls 2.5 hours below the provincial average of 5.1 hours. The District
percentage of time bare pavement was regained within the Class Standard of 8
hours for Class 1 Hwys was 96.5%. The District percentage of time bare pavement
was regained within the Class Standard of 16 hours for Class 1B Hwys was 95.7%.
The District percentage of time bare pavement was regained within the Class
Standard of 24 hours for Class 2 Hwys was 98%.
3
3.4
3
2
1.2
1.2
18
43
1.5
1
0
44
45
Patrols
Average Time to Regain Bare Pavement
The average length of an event was 12.2 hours and on average, bare pavement
was lost for 11.2 hours.
District Average
2001/2002 Ottawa District Class 2 Hwys
1) The following patrols were well below the average number of events per
patrol:
Patrol 24 – 9 Events
Patrol 43 – 8 Events
Hours
Observations
4
3.5
3
2.5
2
1.5
1
0.5
0
3.5
3.2
1
18
45
51
Patrols
Average Time to Regain Bare Pavement
District Average
19
2001/2002 Bancroft District Class 1 Hwys
Bancroft District
Highways in Bancroft District consist of Class 1,1B and 2. The District average to
regain bare pavement for 2001-2002 on Class 1 highways was 2.2 hours which falls
0.1 hour below the provincial average of 2.3 hours. The District average for Class 1B
highways was 2.7 hours which falls 0.8 hours below the provincial average of 3.5
hours. The District average for Class 2 highways was 3.9 hours which falls 1.2 hours
below the provincial average of 5.1 hours. The District percentage of time bare
pavement was regained within the Class Standard of 8 hours for Class 1 Hwys was
96.2%. The District percentage of time bare pavement was regained within the Class
Standard of 16 hours for Class 1B Hwys was 98.7%. The District percentage of time
bare pavement was regained within the Class Standard of 24 hours for Class 3 Hwys
was 99.1%.
Hours
4
3
2
1
0
60
61
83
84
Patrols
Average Time to Regain Bare Pavement
District Average
2001/2002 Bancroft District Class 1B Hwys
5
There were major variances in data.
Hours
803 events or 13.4% of all provincial events were recorded in Bancroft District
equating to an average of 89 events per patrol. 184 events were recorded on Class 1
highways, 400 events were recorded on Class 1B highways and 219 events were
recorded on Class 2 highways. This represents 14.5% of Class 1 events, 14.9% of
Class1B events and 20% of Class 2 events.
4
3
2
1
0
61
71
73
75
81
83
84
Patrols
Average Time to Regain Bare Pavement
The average length of an event was 11.3 hours and on average, bare pavement
was lost for 12.8 hours.
Observations
District Average
2000/2001 Bancroft District Class 2 Hwys
5
There are no significant observations to report.
4.6
4.2
3.9
4
Hours
1)
62
2.8
3
2
1
0
71
73
75
81
Patrols
Average Time to Regain Bare Pavement
District Average
20
2001/2002 New Liskeard District Class 1B Hwys
New Liskeard District
There were no major variances among patrol averages on Class 1B and 2.
There were major variances in time to regain bare pavement on Class 3
highways from a low of 0 hours to a high of 13.5 hours.
1322 events or 22% of all provincial events were recorded in New Liskeard District
equating to an average of 82 events per patrol. 620 events were recorded on Class
1B highways, 256 events were recorded on Class 2 highways and 446 events were
recorded on Class 3 highways. This represents 23.2% of Class 1B events, 23.5%
of Class 2 events and 46.3% of Class 3 events.
Hours
6
5
4
3
2
1
0
5.2
4.8
4.9
5.3
5
4.3
3.7
3.8
3.6
2.9
2.3
2
41
42
43
45
46
47
45A 46A 46B 43A 41A 41B
Patrols
Average Time to Regain Bare Pavement
District Average
2001/2002 New Liskeard District Class 2 Hwys
12
10.6
10.2
10
Hours
Highways in New Liskeard District consist of Class 1B, 2 and 3. The District
average to regain bare pavement for 2001-2002 on Class 1B highways was
4.0 hours which falls 0.5 hours above the provincial average of 3.5 hours.
The District average for Class 2 highways was 8.3 hours which falls 3.2
hours above the provincial average of 5.1 hours. The District average for
Class 3 highways was 6.6 hours which falls 0.1 hours above the provincial
average of 6.5 hours. The District percentage of time bare pavement was
regained within the Class Standard of 16 hours for Class 1B Hwys was
94.8%. The District percentage of time bare pavement was regained within
the Class Standard of 16 hours for Class 2 Hwys was 85.9%. The District
percentage of time bare pavement was regained within the Class Standard of
24 hours for Class 2 Hwys was 93.3%.
8
6.8
5.6
6
4
2
0
41
42
47
42A
Patrols
Average Time to Regain Bare Pavement
The average length of an event was 15.3 hours and on average, bare pavement
was lost for 17.9 hours.
District Average
2001/2002 New Liskeard District Class 3 Hwys
Observations
15
2)
Patrol 45 recorded only 1 event for Class 3 Highways and time to regain
bare pavement was 0.
Patrol 47A recorded 6 events for Class 3 highways.
11
Hours
1)
13.5
9.8
10
7.3
5.9
5
6.2
3
4.3
4.7
43A
41A
0
0
42
43
44
45
47
45A
47A
47B
Patrols
Average Time to Regain Bare Pavement
District Average
21
2001/2002 Sudbury District Class 1 Hwys
5
Sudbury District
Hours
4
Highways in Sudbury District consist of Class 1, 1B, 2 and 3. The District average to
regain bare pavement for 2001-2002 on Class 1 highways was 3.9 hours which is 1.6
hours above the provincial average of 2.3 hours. The District average for Class 1B
highways was 2.9 hours which is 0.6 hours below the provincial average of 3.5 hours.
The District average for Class 2 highways was 4.0 hours which falls 1.1 hour below
the provincial average of 5.1 hours. The District average for Class 3 highways was 4.9
hours which falls 1.6 hours below the provincial average of 6.5 hours. The District
percentage of time bare pavement was regained within the Class Standard of 8 hours
for Class 1 Hwys was 84.2%. The District percentage of time bare pavement was
regained within the Class Standard of 16 hours for Class 1B Hwys was 97.7%. The
District percentage of time bare pavement was regained within the Class Standard of
16 hours for Class 2 Hwys was 99.5%. The District percentage of time bare pavement
was regained within the Class Standard of 24 hours for Class 3 Hwys was 93.3%.
3.9
3.9
9
10
3
2
1
0
Patrols
Average Time to Regain Bare Pavement
District Average
2001/2002 Sudbury District Class 1B Hwys
5
4.3
Hours
There were no variances in data.
2.8
3
2
4.3 4.2
3.5
4
2.5 2.4
2.3
2
1.7
2.8
1.9
1
0
3
6
11
13
14
15
9
41
42 3A 10A 9A
Patrols
2001/2002 Sudbury District Class 2 Hwys
Average Time to Regain Bare Pavement
District Average
7
5.9
6
2001/2002 Sudbury District Class 3 Hwys
5
4
8
3.5
3.4
3
6
Hours
Hours
5
2.4
2
6.1
5
4.1
4.5
6B
10A
4
2
1
0
0
6
8
12
15
6A
6A
Patrols
Patrols
Average Time to Regain Bare Pavement
8
District Average
Average Time to Regain Bare Pavement
District Average
22
863 events or 14.4% of all provincial events were recorded in Sudbury District equating to an average of 51 events per patrol. 82
events were recorded on Class 1 highways, 392 events were recorded on Class 1B highways, 196 events were recorded on Class 2
highways and 193 events were recorded on Class 3 highways. This represents 6.5% of Class 1 events, 14.7% of Class 1B events,
18% of Class 2 events and 20% of Class 3 events.
The average length of an event was 16.8 hours and on average, bare pavement was lost for 16.6 hours.
Observations
1) There are no major data variances.
23
Huntsville District
2001/2002 Huntsville District Class 1 Hwys
5
4.4
4
Hours
Highways in Huntsville District consist of Class 1,1B, 2 and 3. The District average to
regain bare pavement for 2001-2002 on Class 1 highways was 3.8 hours which is 1.5
hours above the provincial average of 2.3 hours. The District average for Class 1B
highways was 4.6 hours which is 1.1 hours above the provincial average of 3.5 hours.
The District average for Class 2 highways was 5.2 hours which is 0.1 hour above the
provincial average of 5.3 hours. The District average for Class 3 highways was 5.3
hours which falls 1.2 hours below the provincial average of 6.5 hours. The District
percentage of time bare pavement was regained within the Class Standard of 8 hours
for Class 1 Hwys was 90.3%.The District percentage of time bare pavement was
regained within the Class Standard of 16 hours for Class 1B Hwys was 92.6%. The
District percentage of time bare pavement was regained within the Class Standard of
16 hours for Class 2 Hwys was 96.7%. The District percentage of time bare pavement
was regained within the Class Standard of 24 hours for Class 3 Hwys was 85.3%.
3.1
3
2
1
0
3
4
Patrols
Average Time to Regain Bare Pavement
District Average
There were major variances among patrol averages to regain bare pavement on Class
3 highways.
The average length of an event was 23.2 hours and on average, bare pavement
was lost for 19.6 hours.
2001/2002 Huntsville District Class 1B Hwys
8
7.1
7
6
Hours
604 events or 10.1% of all provincial events were recorded in Huntsville District
equating to an average of 86 events per patrol. 72 events were recorded on Class 1
highways, 190 events were recorded on Class 1B highways, 274 events were recorded on
Class 2 highways and 68 events were recorded on Class 3 highways. This represents
5.7% of Class 1 events, 7.1% of Class 1B events, 25.1% of Class 2 events and 7% of
Class 3 events.
5
4
3
4.1
2.7
1.4
2
1
Observations
0
1
2
5
7
Patrols
1)
2)
The number of events, average length of the events, average time bare pavement
was lost and average time to regain bare pavement was consistent among the
patrols for Class 1, 1B and Class 2.
Average Time to Regain Bare Pavement
District Average
The average time to regain bare pavement on class 3 highways varies greatly
between patrols 1 and 5 which have an average time of 2 hours for patrol 1 and 8.7
hours for patrol 5.
24
2001/2002 Huntsville District Class 3 Hwys
2001/2002 Huntsville District Class 2 Hwys
7.6
8
7
7
5.5
5
5
4.3
Hours
Hours
6
4
4
3
2.7
2
1
0
10
9
8
7
6
5
4
3
2
1
0
8.7
2
1
1
2
3
4
5
6
7
Patrols
Average Time to Regain Bare Pavement
District Average
5
Patrols
Average Time to Regain Bare Pavement
District Average
25
Sault Ste Marie District
2001/2002 Sault Ste Marie District Class 1B Hwys
There was a major variance for patrol 45 with respect to their time to regain bare
pavement.
173 events were recorded in Sault Ste Marie District. This represents 6.5% of all
class 1B events in the province and 2.9% of all events in the province. The patrol
average in Sault Ste Marie District is 35 events per patrol.
7
5.8
6
5
Hours
Highways in Sault Ste Marie District consist of Class 1B. The District average to
regain bare pavement for 2001-2002 on Class 1B highways was 3.2 hours which
falls 0.3 hour below the provincial average of 3.5 hours. The District percentage of
time bare pavement was regained within the Class Standard of 16 hours for Class
1B Hwys was 96.5%.
3.6
4
3
2.7
2.3
1.8
2
1
0
41
42
43
44
45
Patrols
Average Time to Regain Bare Pavement
District Average
The average length of an event was 12.7 hours and on average, bare pavement was
lost for 14 hours.
Observations
1)
Patrol 45 time to regain bare pavement was 5.8 hours. This is 2.6 hours above the district average of 3.2 hours
26
Thunder Bay District
There was one major variance for Class 3 highways in the number of events and time
to regain bare pavement. In addition, one major variance in the time to regain bare
pavement on Class 1B highways.
Hours
12
10
8
6
4
2
0
10.4
5.1
4.1
2.8
1.1
34
35
36
41
4.8
3.5
2.9
1.8
1.3
42
43
44
45
46
49
Patrols
Average Time to Regain Bare Pavement
Ditrict Average
2001/2002 Thunder Bay District Class 2 Hw ys
Hours
Highways in Thunder Bay District consist of Class 1B, 2 and 3. The District average to
regain bare pavement for 2001-2002 on Class 1B highways was 3.8 hours which falls
0.3 hours above the provincial average of 3.5 hours. The District average for Class 2
highways was 3.8 hours which falls 1.3 hours below the provincial average of 5.1
hours. The District average for Class 3 highways was 12.4 hours which falls 5.9 hours
above the provincial average of 6.5 hours. The District percentage of time bare
pavement was regained within the Class Standard of 16 hours for Class 1B Hwys was
95.3%.The District percentage of time bare pavement was regained within the Class
Standard of 24 hours for Class 2 Hwys was 96.9%. The District percentage of time
bare pavement was regained within the Class Standard of 24 hours for Class 3 Hwys
was 91.4%.
2001/2002 Thunder Bay District Class 1B Hwys
803 events or 13.4% of all provincial events were recorded in Thunder Bay District
equating to an average of 73 events per patrol. 450 events were recorded on Class
1B highways, 96 events were recorded on Class 2 highways and 185 events were
recorded on Class 3 highways. This represents 16.8% of Class 1B events, 8.8% of
Class 2 events and 26.7% of Class 3 events.
7.4
8
6
4
2
0
2.3
1.6
35
36
48
Patrols
Average Time to Regain Bare Pavement
District Average
The average length of an event was 18.8 hours and on average, bare pavement was
lost for 20 hours.
2001/2002 Thunder Bay District Class 3 Hwys
1)
Patrol 49 recorded 8 events for Class 3 Highways.
2)
Patrol 41 had an average time to regain bare pavement of 10.4 for Class 1B
highways. This is 6.6 hours above the district average of 3.8 hours.
3)
Patrol 41 and 35 were well above the district average for Class 3 highways in
the time to regain bare pavement. Patrol 41 was 26.5 hours while Patrol 35 was
21.3 hours. The district average is 12.4 hours.
Hours
Observations
30
25
20
15
10
5
0
26.5
21.3
13.5
35
41
2.3
1.4
42
43
45
12.2
48
9.5
49
Patrols
Average Time to Regain Bare Pavement
District Average
27
2001-2002 Targets
The performance measure reported to Management Board for the 2001-2002 winter will be the
percentage of time the Ministry reaches bare pavement within the winter level of service class
standard. The target for 2001-2002 was set at 90% of all events for all classes.
The average percentage of time bare pavement was regained within the class standard for all
classes of highway in 2001-2002 was 95.2%.
Final Recommendations
1.
Districts/Regions to investigate problems identified in “Observations” section of District
details.
2.
Review District data in January/February 2003 to ensure compliance from all areas
3.
The 2002-2003 target remain at 90% of all events for all classes.
28