Inside Traffic Images
[ Traffic Counts ] [ Weigh-In-Motion ]

JOHO Traffic Images

JOHO is currently in use in the Traffic Engineering Division of the Maine Department of Transportation.  They use JOHO to monitor their sensors and to analyze the huge volume of traffic data generated by their permanent counters, including count, classification and weigh-in motion (WIM) sensors. Working with their analysts, American Image has furnished automated processing scripts that quickly and automatically produce hundreds of updated JOHO images, including updated images for their web site, whenever they download count data from the sensors.

We provide traffic count images that illustrate JOHO’s ability to show a large amount of data in a single, easy-to-interpret image. The descriptions will help you to understand the basic structure of a JOHO image, and will enable you to quickly interpret all the JOHO images on the site.  

I-95 N & S November, 2001

I-95 N & S Full Year, 2001

We also have a selection of WIM images. These images show how JOHO can aid in interpreting the more complex data generated by these modern sensors.  

I-95 S Type 11

The traffic images we’ve included here represent just a few of the analytical images that JOHO can produce from traffic sensor data. With the variety of fields in the traffic sensor’s output, it is easy for JOHO to create or compute families of images for different purposes. JOHO can show counts, speeds, ESALs, and other variables, and illustrate how each of these varies with time or vehicle type or lane.  The available layouts and relationships are limited only by the imagination of the analysts.

The standard reports, tables, and graphs that the sensor vendors provide, and ones developed in-house using traditional techniques, can often hide vital information because they must average or sample.  JOHO puts all of the information, without unnecessary averaging, in front of the analyst, in an easily interpreted image. Furthermore, the analyst (or American Image) can automate these tasks to make them trivial.