Missouri’s
Smart Roadside Program
Michelle Teel, P.E., PTOE
MoDOT’s mission to provide a world-class transportation experience that delights our customers
and promotes a prosperous Missouri.
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What is Smart Roadside?
Using advanced technology as a tool in
the roadside “toolbox” to improve
efficiency and effectiveness of commercial
motor vehicle enforcement operations.
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Why should you embrace
Smart Roadside?
Targets high risk carriers;
Provides an even playing field;
Can be deployed at different sites (fixed,
mobile, etc.);
An opportunity to increase compliance
verification when enforcement resources
continue to be a challenge; and
The increase volume of CMV traffic requires
new methods to validate compliance.
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Missouri Quick Facts
Plans, designs, constructs
and maintains 33,639 miles of
highways and 10,335 bridges
and culverts.
Has the most major river
bridges (53) than any other
state.
The nation’s seventh largest
state highway system.
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Missouri’s Roadside Program
Weigh station
presence covers
the I-55, I-44,
I-70, I-35 and
I-29 and US 60,
50 and 71
corridors
Virtual station on
US 67.
PrePass state with
19 sites, including
4 ramp WIMs
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Calendar Year 2010
PrePass Bypasses
Ramp Weigh-in-Motion
Portable Scales
Static Scale Weighs
Total Vehicles Weighed
2,208,386
1,326,492
1,150
1,887,100
5,423,128
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Percent of Trucks Using Advanced
Technology at Weigh Stations
100
Percent
80
63.0
60
53.7
19.1
57.5
56.6
57.2
19.3
21.6
20.2
35.0
37.0
2007
2008
40
34.6
38.2
65.2
24.5
21.4
Missouri Weigh-inMotion
Missouri PrePass
41.6
40.7
2009
2010
20
0
2005
2006
Calendar Year
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What Started Missouri on its
Smart Roadside path?
Barnhart, MO I-55
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Virtual Site Location
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Virtual Site – US 67 Exit Ramp
1. Remote electronic screening site
including:
• ALPR, AUR, Video, WIM
• Smart Roadside Inspection System
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Virtual Site – US 67 Exit Ramp
2. Performance
• Speeds up to 55 mph
• 24/7 operation
• Driver-safe lighting
• Identification Rates
• ALPR or AUR: 77.8%-94.4%
• ALPR + AUR: 33% - 77.8%
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Virtual Statistical Data
One Week – Alert Types
16.3% Credentials
30.5% Safety
45.9% Weight
7.3% Taxes/Fees
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New Weigh Station – I55
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What is so different in Missouri?
1. Use of Magnetometer Loop Detector
(MLD) to “fingerprint” the commercial
motor vehicle on
the mainline. The
loop is used for
PrePass WIM with
the addition of a
mainline camera.
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How is the vehicle fingerprinted?
Using the MLD, you can electronically tag
and track CMVs based on the density and
distribution of metal producing a
waveform or “fingerprint” of the vehicle
and its load.
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New Weigh Station – I55
What is so different in Missouri?
2. Attach weight data captured on the
PrePass mainline WIM for carrier vehicles
not enrolled in PrePass Program to the
vehicle’s fingerprint with an overview pic.
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New Weigh Station – I55
What is so different in Missouri?
3. Re-identify the CMV using a MLD loop
on the ramp along with a LPR, AUR and
Image Capture
system to identify
the carrier and
plate information
by querying the
state’s CVIEW.
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New Weigh Station – I55
What is so different in Missouri?
4. The fingerprint of the vehicle on the
mainline is matched with the fingerprint
on the ramp. When a match is found, the
weight and all information gathered from
the LPR and AUR are put together.
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New Weigh Station – I55
What is so different in Missouri
5. The information from the Smart Roadside
System (SMS) is passed to the lane
control system and static scale software
(Mettler-Toledo). If all the information is
valid (no alerts) the vehicle is allowed to
use the station’s bypass lane. All other
vehicles are sent to the static lane. Lane
control information is returned to the
SMS system.
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New Weigh Station – I55
What is so different in Missouri?
6. Eliminated the need for a PrePass
Compliance Reader because the system
will identify a vehicle enrolled in the
PrePass system that was not identified on
the ramp of the station if the vehicle
received a red light and did not enter the
station as required.
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Smart Roadside Software
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Lane Control System Screen
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ScaleManager Screen
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ScaleManager Screen
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Bloomsdale Staffing
Bloomsdale weigh station has 5 full time
positions staffed by MSHP CVOs/CVIs.
Open 7 days a week approximately 16 hours
a day.
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Technology
The new identification technology and
scale platform system makes it easier to
verify compliance and allows for better
use of resources .
The automated features, such as the
automated lane control which closes the
facility when traffic is backed up,
enhances safety.
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Statistical Data
One Week – Alert Types
38.5% Bypass
13.2% Credentials
36.4% Safety
3.3% Weight
3.0% Taxes/Fees
Summary
5.9% Alert ratio
Read Rates
ALPR or AUR:
89.5% – 100%
ALPR + AUR:
53.3%-75%
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Questions?
Contact Information:
Barbara.Hague@modot.mo.gov
573.751.7128
Londell.Jamerson@mshp.dps.mo.gov
573.751.4653
It’s Personal: Transportation is more than roads and
bridges and projects. It’s your connection to safety, work,
business, family and better government.
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