July 2013 MONTHLY PERFORMANCE

2013
July
MONTHLY
PERFORMANCE
MEASURES
Control Room Contact Info:
Phone: 616‐451‐8329
Fax: 616‐774‐9101
MDOT'S MISSION:
Providing the highest quality integrated transporta on services for economic benefit and improved quality of life.
Suze e Peplinski, P.E.
WMTOC Manager
1420 Front Avenue NW
Grand Rapids, MI 49504
[email protected]
Report Compiled By
Page 2 of 7
July 2013
WMTOC Spotlight
The popular annual July 4 fireworks display in Device Loca ons
downtown Grand Rapids prompted extended staffing of the West Michigan Transporta on Opera ons Center (WMTOC) control room during the event. The control room monitored traffic before, during, and a er the fireworks, and coordinated with the Grand Rapids Police Department (GRPD), while dynamic message signs were used to inform motorists of ramp closures. Thanks to these efforts, no traffic incidents were reported during the event.
Communica on with first responders is crucial for the safe, efficient movement of people and goods on state highways. Recently, WMTOC staff met with the O awa County Central Dispatch Center. Leaders from both centers discussed coordina on efforts for planned and unplanned events, methods to improve communica ons, and toured the dispatch facility. Improved communica ons between the WMTOC and the O awa County Central Dispatch Center will help improve response mes for incidents and faster distribu on of informa on to the public, telling motorist what they need to know to make informed decisions about their travel plans. This mee ng is the first of a planned series of mee ngs between the WMTOC and local county dispatch centers.
The WMTOC focuses on MDOT's goals of incident management, crash reduc on, customer informa on, and conges on reduc on. The TOC provides motorists and businesses with real‐ me traffic informa on, and partners with emergency response agencies to provide improved response services to traffic crashes, saving lives, me, and money.
The WMTOC has camera/device coverage on approximately 45 freeway miles and 18 non‐freeway trunkline miles in the greater Grand Rapids area and Grand Haven.
Control Room Ac vity
Page 3 of 7
July 2013
Event: An occurrence within the TOC coverage area that results in TOC involvement or tracking. Several different types of events recur, including: Crash, Disabled Vehicle, Abandoned Vehicle, Debris, Conges on, Construc on, Maintenance, AMBER Alert, Weather, and Special Event types. Any other occurrence with TOC involvement is classified as "Other"
Incident: An unplanned event that directly affects a state trunkline. These are primarily crashes, disabled and abandoned vehicles, and debris in the roadway but occasionally include police situa ons and fires.
Communica on: Any phone call, e‐mail, etc., that comes into or goes out of the control room.
Events by Type
0
Crash
Conges on
Construc on
Disabled Vehicle
Weather
Abandoned Vehicle
Debris
Maintenance
Other
Special Event
Amber Alert
10
20
30
40
50
60
70
80
72
42
36
25
8
Of the 193 total Events this month, 53%, or 102, were classified as Incidents.
3
2
2
2
1
0
0 %
5
10
15
20
Control room operators (CRO) rely on various sources to detect
Incidents that occur along the freeways. No ng the source not
only ensures that the Incident was detected by a reliable source, but also provides insight as to which sources are u lized most frequently. "Other" includes any source that is infrequent, such as responders on scene or third party no fica ons.
I ncidents by Detec on Source
CCTV Cameras
54
Scanner
30
35
40
C
ommunica on by Agency
Weather,
29
URS
Corpora on,
63
, 37%
GovDelivery,
138
GRPD, 77
Other,
237
ITS System
Maintenance,
83
Nixle,
16
MSP, 17
KCRC, 1
MDOT, 277
20
Other (see notes)
25
14
8
Radio
4
GRPD
Television
1
Internet
1
Vehicle Detectors 0
MSP 0
0
10
20
30
40
Number of Events
50
Since CROs are responsible for monitoring and
managing traffic opera ons along the freeways, it is cri cal to know where work zone ac vi es are taking
place and the impact that they may have on freeway
opera ons. Frequent communica on with MDOT staff
and contractors ensures that the CROs are kept
up‐to‐date on the loca ons and impacts of construc on and maintenance projects. Work zone ac vi es which
are messaged for or are within the camera/device coverage area of the WMTOC are logged. "Other"
includes Oceana, Newaygo, Mecosta, Muskegon, Montcalm, and Ionia coun es.
60
CROs managed 938 Communica ons this month. This included 353 (38 percent) Calls and 585 (62 percent) E‐mails. The highest source of Communica on, 30 percent, was between the control room and MDOT. "Other" includes
Media, Contractors and Service Providers, as well as the City of Grand Rapids.
ork Zone Ac vi es
W
Page 4 of 7
July 2013
Traveler Informa on
DMS and VSS Messages by Type
Special
Event, 5
Weather, 51
Incident,
112
Construc on,
93
Conges on,
110
There were 371 unique m e s s a g e s d i s p l a y e d throughout the ITS network this month on Dynamic Message Signs (DMS) and
Variable Speed Signs (VSS). A "unique message" may be an Incident, Special Event, Conges on, Weather, Construc on, AMBER Alert, or other unique message.
Travel me messages are rou nely displayed when unique messages are not ac ve. Travel mes are updated every three minutes.
S tuck in Traffic No fica ons
Southwest
Region, 23,
6%
F ield Device Availability
Device Type
CCTV Cameras
Number of Percent of Time Devices
Available
40
77%
Dynamic Message Signs (DMS)
27
99%
Microwave Vehicle Detectors
43
84%
Variable Speed Signs (VSS)
4
94%
CROs track the availability of all system devices so that
mely maintenance can occur. The reliability of the devices
in turn ensures that CROs have tools available to accurately
provide traffic condi ons to the motoring public.
University
Region,
108, 27%
North
Region, 6,
1%
Metro
Region,
176, 44%
Bay Region,
46, 11%
Grand
Region,
44,
11%
Travelers with smartphones or Web‐enabled mobile devices can go to the Mi Drive Web site (www.michigan.gov/drive) and click on the "Stuck in Traffic?" link to report traffic delays or
incidents. The graph above shows how many were reported per MDOT region.
WMTOC LCAR Posts
CROs are able to post Incident informa on to the Mi Drive Web site using the Lane Closure and Restric ons (LCAR) tool. Each post that was sent to the Web site this month is shown in the chart above.
Page 5 of 7
Incident Management
July 2013
Incidents in Coverage Area by Freeway
July 2013
Freeway
I‐96
I‐196
US‐131
US‐31
M‐6
M‐11
Total
Miles
10.6
12.1
15.2
1.7
4
11.5
55.1
Total Incidents
7
24
47
3
1
4
86
Incidents per Mile
0.7
2.0
3.1
1.8
0.2
0.3
1.6
July 2012
Average Duration (min)
50
100
42
94
29
34
60 min
Total Incidents
9
26
51
0
2
0
88
Incidents per Mile
0.8
2.1
3.4
0.0
0.5
0.0
1.6
Previous 12‐Month Avg.
Average Duration
67
74
106
0
152
0
94 min
Total Incidents
15.8
28.6
55.2
1.7
3.2
0.9
105.4
Incidents per Mile
1.5
2.4
3.6
1.0
0.8
0.1
1.9
Average Duration
70
69
78
71
73
30
74 min
US‐131 experienced the most total Incidents this month; addi onally, US‐131 had the greatest incident‐per‐mile rate for the month. The longest average incident dura on during the current month occurred along I‐196. Abandoned vehicles are
excluded from this table.
T otal Incidents
The majority of the high‐impact Incidents this month, 49 percent, occurred along US‐131. For most high‐impact incidents, CROs are required to provide e‐mail no fica on to a pre‐defined distribu on list of individuals and organiza ons. The no fica on includes the loca on of the incident, the degree of closure, the reason for the closure, the source that verified the incident and any other
per nent informa on related to traffic opera ons.
H
igh ‐ Impact Incidents
There were a total 102 Incidents this month, 52 percent of which were high‐impact incidents. A high‐impact incident is one that results in a total
freeway closure, a ramp closure or a lane closure.
July 2013
July 2012
4
43
6
53
5
28
3
36
Freeway Closures
Lane Closures Ramp Closures
Total
Top Dura on Incidents
Location
WB I‐96 @ M‐66 (State Road)
SB US‐131 @ M‐20 (8 Mile Road)
SB US‐131 @ M‐222
WB I‐196 @ Lake Michigan Drive
SB US‐31 @ Van Wagoner Street
I ncidents in Work Zones
Date
7/15/2013
7/6/2013
7/3/2013
7/13/2013
7/1/2013
Duration
405 min.
298 min.
248 min.
134 min.
123 min.
Details
Multi‐vehicle crash
Two‐vehicle crash
Two‐vehicle crash
Single‐vehicle crash
Two‐vehicle crash
Previous 12‐
Month Avg.
3.5
44.2
3.1
50.8
The longest‐dura on Incident this month occurred along westbound I‐96 and lasted 405 minutes, compared to the average incident dura on of 60 minutes for July incidents and 70 minutes for incidents on I‐96 in the past year.
During the month of July, 18 incidents were iden fied by operators as being within work zones. Of these, 14 occurred within the northbound US‐131 auxiliary lane work zone and two occurred within the I‐196 work zone over the Grand River.
Page 6 of 7
Incident Management
July 2013
Total of Unplanned Incidents per Weekday Hour
Number of Incidents
26
24
20
16
12
8
4
0
12 a.m.
2 a.m.
4 a.m.
6 a.m.
8 a.m.
10 a.m.
12 p.m.
Time of Day
2 p.m.
4 p.m.
6 p.m.
8 p.m.
10 p.m.
: Previous 12‐Month Avg.
The largest hourly number of Incidents this month occurred during the hour star ng at 7 a.m.; historically the largest hourly number of incidents occur during the hour star ng at 7 a.m.
I ncident /R
oadway Average Clearance Times
I ncident Clearance Details
Incident
28
45
19
9
July 2013
Roadway 16
July 2012
Incident
22
29
10 5
30
22
18
Roadway 11 13 6 6
12-Month
Average
Incident
35
Roadway
20
0
44
20
20
12
Clearance Time (Minutes)
100
93
80
75
60
69
40
32
20
22
23
8 4
20
40
60
80 100 120
Number of Incidents
0-29 Minutes
30-59 Minutes
60-119 Minutes
120+ Minutes
0
July 2013
July 2012
Previous
12-Month Avg.
Incident Clearance Time
Roadway Clearance Time
First responders and MDOT share a goal of clearing
Incidents from the roadway and reducing incident
clearance mes to limit the risk to the incident site and
responders, and safely restore normal traffic flow. Effec ve response and clearance improves safety for
motorists as well as first responders.
S econdary Crashes
"Incident clearance me" is defined as the me
between the awareness of an Incident and the me
when all vehicles are removed from the scene. "Roadway clearance me" is defined as the me
between the awareness of an incident and
confirma on that all lanes are open to traffic. MDOT's
goal is to minimize delays caused by incidents as well
as the occurrences of secondary incidents.
Out of the 72 total crashes this month, seven (10 percent) were Secondary Crashes.
Page 7 of 7
Freeway Hot Spots
July 2013
The top Crash loca ons for the month a r e iden fied on the map. Each month the loca ons may change. Details for e a c h l o c a o n depicted on the map can be found in the "Hot Spot
Ac vity" table below.
B
A
The hot spots depicted on the map are described in this table. The number of hot spot crash loca ons may vary each month depending on incident ac vity. The minimum threshold used for categorizing a loca on as a "top" hot spot is four Crashes. This threshold is set based on historical data for the WMTOC coverage area.
Crash Hot Spot Ac vity
Hot Spot
A
B
Freeway and Cross Street
US‐131 at I‐196
US‐131 at US‐131 BR (Leonard St)
Count
10
8
% of Total Crashes
14%
11%
Appearances in Previous 12 Months
6
1