SML
field tests public safety products under contract from the manufacturers. SML reports to these makers and charges a field evaluation fee.  Radar and laser gun makers send SML their new equipment for SML’s field evaluation. These evaluations are confidential for the manufacturer until released. SML also develops products on its own to sell to appropriate agencies including law enforcement, departments of transportation, neighborhood associations, industry, and school districts.


Invisible Strobe©-SML has taught at the headquarters of the red light and speed camera makers.  Increasingly, the visible strobe of both systems startles drivers causing
accidents and
even deaths.  The major negative in installation of red light cameras has been the rear end accident rate is almost the same as the intersection collisions they curtail. SML in conjunction with a prominent light bar manufacturer has developed a system of infrared filters causing the strobe to be invisible to the human eye while illuminating the vehicle and driver with a specially modified camera. As the pictures show, the one on the left was covered with a special IR filter with a modified imaging camera while the one on the right is the traditional visible strobe.


Emergency Vehicle Alert® (EVA)-SML has pursued and developed a system using existing optical pre-emption intersection systems. Some 28,000 intersections
are so equipped. This development was done in
conjunction with Traffic Safety Technologies LLC. See www.traffic-safety-technologies.com. These systems allow emergency vehicles to change the traffic lights from red to green with a modulated white strobe usually in their light bar. This means quicker response to an emergency situation.  The problem has been notifying drivers in their cars so they will pull over allowing the emergency vehicle to pass. EVA is a dash mounted or mirror enclosed system warning drivers of an approaching emergency vehicle by voice, visual, and audible alert. SML has testified twice before the California General Assembly on this matter. Legislation has been passed mandating such a system. The system has been field tested courtesy of the Tucson Fire Department. It does not endorse any products.


Radar Speed Displays-SML has worked closely with departments of transportation, school districts, radar display makers, and radar manufacturers in specially designing radar displays to
meet exact
requirements. Effectiveness research of radar displays has been published with SML in conjunction with three major universities. Research indicated larger displays are easily seen at interstate speeds and smaller displays are found to be ineffective. A longitudinal study by the University of Nebraska found permanent, long term effectiveness of radar displays reducing speeds from 5-7 mph.


Radar Drones-Radar drones transmit a police radar signal up to a mile from their location. Radar drones must be on K or Ka band.  Traffic Safety Technologies LLC, www.traffic-safety-technologies.com markets these fist-sized, black devices. Radar drones are used in school zones, school busses, work zones, and where speed control is desired. Contact SML at speed@speedinglimits.com or call at 817/291-2396.


Check www.radarsignals.net for updates on industry developments.