Vehicle detector with operational display

A variable vehicle detector display for facilitating operator control of function state selection, vehicle detector parameter selection, and vehicle detector parameter value selections, said display comprising:

• a first variable display portion including a plurality of individually activatable bar-like segments together defining a bar graph for displaying the relative magnitude of at least one vehicle detector parameter;
• a second variable display portion having a plurality of character regions for displaying actual values of at least one vehicle detector parameter;
• and
• a third display portion having a plurality of individually activatable message indicators for indicating a selected parameter whose actual value is being displayed by said second portion.

A vehicle detector comprising:

• means for detecting the occupancy state of a loop detection zone;
• at least two manually actuatable function switches coupled to said detecting means for enabling operator control of function state selection, selection of any one of a plurality of vehicle detector parameters, and vehicle detector parameter value selection;
• and
• a variable display device coupled to said detecting means for indicating a selected parameter and the actual value of a parameter selected by at least one of said function switches.