Modular traffic controller

An above-grade vehicle traffic controller permitting traffic flow in one direction while preventing traffic flow in the opposite direction, and including:

• a low profile frame comprising, an elongated planar base member to be transversely superimposed upon a pavement surface over which vehicular traffic is to pass, a pair of spaced rails extending longitudinally of the base member, and opposite ramp members extending longitudinally of the base member and inclined thereover between the opposite edges thereof and the spaced rails respectively, there being a shallow upwardly open channel between said rails;
• and a plurality of modules selectively replaceable in a series along the rails of said frame and including barrier modules comprising, a slotted mounting plate secured to the rails and disposed in a plane extending between the said opposite ramp members, a barrier blade assembly journaled on spaced trunnions depending into said frame channel and with at least one barrier blade depressible through the mounting plate slotted therefor, and spring means extending from a lever point on the barrier blade assembly to the mounting plate and yieldingly urging the barrier blade assembly into stopped engagement with the mounting plate to be visibly exposed thereabove for vehicle control.

An above-grade vehicle traffic controller permitting traffic flow in one direction while preventing traffic flow in the opposite direction, and including:

• a low profile support to be transversely superimposed upon an existent framework disposed in a plane coincidental with a pavement surface over which vehicular traffic is to pass and comprising, a pair of spaced rails secured to said existent framework, there being an upwardly open channel recess between said secured rails;
• and a plurality of modules selectively replaceable in a series along the rails and including barrier modules comprising, a slotted mounting plate secured to the rails in a supporting plane and having opposite ramps, a barrier blade assembly journaled on spaced trunnions depending into said channel recess and with at least one barrier blade depressible through the mounting plate slotted therefor, and spring means extending from a lever point on the barrier blade assembly to the mounting plate and yieldingly urging the barrier blade assembly into stopped engagement with the mounting plate to be visibly exposed thereabove for vehicle control.