Metro count presentation

MetroCount®

The Traffic Data Specialists

MC5712

MC5720

MC5740

MC5805

MC5600

MC5710

MetroCount Traffic Executive Software

How Classifiers Work

About MetroCount

MetroCount Traffic Executive® Windows Software

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After installing tubes, enter site details into the Roadside Unit, using:

“MCSetup” – Laptop computer, or

“MCSetlite” – PocketPC

After the survey, retrieve data using laptop computer or Pocket PC, and return to office for processing with “MCReport”.


After the survey, process traffic data with “MCReport”...

To produce many tables, charts, graphs and user-defined formats.

All reports based on MetroCount’s “time-stamped” individual axle data! Main Menu


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Extensive post-survey data processing options


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Text reports and graphical reports


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User-definable searching and filtering


Data export options

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How Classifiers WorkAXLE SENSORS

B A

Known sensor spacing(usually = 1m)S

Two axle sensors (rubber tube, piezo strips) are installed on the road a known distance apart (eg 1 metre), and connected to the Roadside Unit.

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B A

V = SΔt

The System calculates the vehicle’s speed, using the simple physical formula:

Velocity(V) = Distance(s) / Time(Δt)


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B A

V = SΔt

Known sensor spacing(usually = 1m)S Distance (s) is the known sensor

spacing.

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B A

V = SΔt


tB

tB

tA

tA

Δt = – The System calculates Time (Δt) by subtracting “tB” from “tA”, (which is simply the time difference between the first two sensor strikes, or “hits”).

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B A

V = SΔt


t1 t2 t3 t4t1 t2 t3 t4

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The System then measures the time offsets to subsequent axles to calculate axle spacings (Sp1, Sp2, etc).

Axle Spacings:Sp1

Sp2

Sp3

Sp4


B A


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5 – axle truck / trailer combination(e.g. ARX Class 9)

Once the axle spacings are known, the System can “look up” the spacings in a “Classification Scheme”, to determine the vehicle’s class.

Axle Spacings:Sp1

Sp2

Sp3

Sp4

MC5600 Portable Vehicle Classifier

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We give you the software...

The MetroCount 5600 SeriesVehicle Classifier System…

“A complete system for all traffic surveys”

MetroCount 5600 Roadside Unit

+

=

You buy the hardware...Complete System!

MetroCountTraffic Executive™

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User replaceable D-size alkaline batteries for at least 290 days of continuous operation.

Adaptive “auto ranging” air sensors require no calibration.

Conformally coated electronics, all Surface Mount Technology.

Totally weatherproofStainless steel Roadcase with integral tube locking – light, yet strong!

Time stamps every axle at less than 1 millisecond resolution.Status LEDs indicate operation.Unique “Dual Level” protection.Memory up to 2MB – stores up to 1 million axles.

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MetroCount Accessories

Rubber Pneumatic Road Tube

Works as an axle sensor by emiting an air pulse when struck by tyres.

Figure-8 Cleats

Used to attach road tubes to road surface.

Centre Lane Flaps

Provide lateral stability to tube installations and reduce tube slap .

Road Nails

To secure tube to the road with figure-8 cleats & centre lane flaps.

Basic tool kit...

• Tape measure

• Hammer

• Crowbar

• Traffic control (to comply with applicable standards).

To be properly installed, tubes must be:

• Correctly spaced;

• Parallel to each other;

• Perpendicular to vehicle travel;

• Same length from wheel path to Roadside Unit, checked after installation.

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User-replaceable alkaline batteries

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External setup via a portable computer

MC5710 Permanent Vehicle Classifier

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MetroCount 5710 with MSI BL Piezo Sensor


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MSI Roadtrax BL Sensor



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Force

Voltage

Piezoelectric Effect

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MC5805 Advanced Loop Counter

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MC5720 Advanced Bicycle Counter


Why count bikes...?

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Advantages of the MC5720 include:

Excellent signal-to-noise ratio.

Broad speed response.

Low profile.

Cluster separation – separates clusters of bicycles.

Ultra-low power consumption.

Synchronous second channel – time-stamp other sensors, such as pedestrian counters.

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MetroCount 5720 Advanced Bicycle Counter

with MSI BL Piezo Sensor

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1. Cut slot

2. Insert BL piezo sensor

3. Fill with polyurethane resin

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Main MenuComparison of MC5720 data with manual count data



Individual Bicycles with “Inspector Gadget”

Sample Reports

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Flow Stacked by Speed Bins (hourly integration)

Sample Reports

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Speed bins (5km/hr bins)

Sample Reports

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MC5712 Timing Analysis Roadside Unit

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MC5712 Dual Channel Roadside Unit...

Channel “0” monitors the traffic via pneumatic tube


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MC5712 Dual Channel Roadside Unit...

Channel “1” monitors the signals via optical interface


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Both data channels are combined in software, via user-defined “Phase Maps”

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Vehicle by vehicle records interleaved with signal changes


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Overall summary of vehicles entering the intersection

Note the increasing speed trend from Green to Yellow to Red – commonly observed!


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Graph of vehicle flow after Yellow phase


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Graph of vehicle flow after Green phase


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Graph of vehicle speed after Yellow phase


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Graph of vehicle speed after Green phase

MC5740 Piezo Test Roadside Unit

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MC5740 Piezo-Test RSU


Capacitance of Piezo Element and Coaxial Feeder Cable

15nf = 15,000pf 100pf

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Main MenuPiezo Test report, with good signal-to-noise ratio, and some temperature variation


Main MenuAnother Piezo Test report, with good signal-to-noise ratio, and some temperature variation


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Piezo Test report, with poor signal-to-noise ratio


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Piezo output and leakage – low leakage


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Piezo output and leakage – high leakage

About MetroCount

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Established in 1987, Fremantle, Western Australia

About MetroCount

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Focus on Traffic Monitoring Systems

Grown over 20 years, with offices in London UK and Washington DC USA

About MetroCount

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Clients in over 80 countries, with thousands of systems in daily use throughout the world

About MetroCount

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About MetroCount

AustraliaP.O. Box 1182Fremantle WA 6959Ph: 08 9430 6164Fax: 08 9430 6187Email: [email protected]

United KingdomUnit 30, Rosemont RoadWembley Middlesex HA0 4PEPh: 020 8782 8999Fax: 020 8782 8737Email: [email protected]

United States18200 Georgia Ave, Suite JOlney MD 20832Ph: 800 576 5692Fax: 866 440 8407Email: [email protected]

www.metrocount.com

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