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Slide 1

Traffic Monitoring Guide
Truck Weight Monitoring
(Section 5)

Powerpoint presentation (2964 KB)


Slide 2

Objective


Slide 3

Data Users


Slide 4

Truck Weight Program


Slide 5

Products


Slide 6

Bar graph of rural interstate travel.  Autos, Buses and Light Trucks make up 77% of traffic volume, but only 2% of axle load.   5 axle or more combo trucks make up 17% of traffic volume, but 89 of axle load.


Slide 7

Line graph comparing growth in volumne and loadings on the interstate system.  Over time, the average daily load far outpased the average daily traffic.


Slide 8

Truck Weight Program Components


Slide 9

Structure of Weight Vehicle Program


Slide 10

Continous Count Program


Slide 11

Purpose


Slide 12

How many?


Slide 13

Short Term Count Program


Slide 14

Purpose?


Slide 15

Segments


Slide 16

Cycles?


Slide 17

Durations?


Slide 18

Types of Weighing


Slide 19

Static Weighing


Slide 20

photo of truck involved in static weighing


Slide 21


Slide 22

WIM Sensor Technology


Slide 23

Picture of Load Cell

photo of load cell WIM system


Slide 24

Picture of Bending Plate WIM System

photo of bending plate WIM System alongside a highway photo of bending plate WIM system

Slide 25

Picture of Piezo-Ceramic WIM System

photo of piezo-ceramic WIM System


Slide 26

Picture of Capacitance Mat WIM System

photo of capacitance mat WIM system


Slide 27

Picture of Capacitance Strip WIM System

photo of capacitance strip WIM system


Slide 28

Picture of Bridge WIM System With Strain Gauges

photo of bridge WIM system with strain gauges


Slide 29

WIM Calibration


Slide 30

Reference Materials


Slide 31

Software and Reports


Slide 32

VTRIS (Vehicle Travel Information System)


Slide 33

VTRIS


Slide 34

W-Tables(TWS)

VTRIS Reports: http://apps.fhwa.dot.gov/vtris/vtris.aspx


Slide 35

Summary


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