Why Are Traffic Lights Mounted in a Vertical Configuration?
Did you know that approximately 20 percent of all driving time in the United States is spent waiting at red lights? That means the average driver will spend more than 58 hours every year waiting at red lights1. With all that time spent waiting, have you ever stopped to think about the traffic lights themselves? For example, why does red mean stop? Why are traffic lights configured vertically? How do the lights know when to change to keep traffic moving? Let’s get to the bottom of one of those…continue reading
Are There Sensors At Traffic Lights?
There are an estimated 284.5 million registered vehicles on the road in the United States in 2019 and that number goes up every year. With more cars on the road every day, traffic congestion is constantly on the rise. Traffic control systems help to manage traffic patterns and help improve the flow of traffic in many ways. Modern traffic control systems can include traffic lights, sensors, signs, cameras, and more. Each component in a traffic control system serves an important function in managing…continue reading
System 3000 Network Based Time Clock (IMSA July-August ’10)
ELTEC Introduces Network Based Time Clock Download Article Here ELTEC has launched a new program-mable time clock, the TC-3000. Using your available internet/network ac-cess, it provides real-time closed-loop management from a host computer, eliminating the need to send techni-cians for on-site trouble shooting or changing/modifying programs. The System 3000 (DLPRO 3000 soft-ware, LANG 3000 & TC-3000 time clock) utilizes the internet or private intranet and RF technology eliminat-ing paging…continue reading
Instructions for Changing Daylight Saving Time in ELTEC Time Clocks To Meet Current Federal Law
Includes NTC-17E series, TC-1500 and TC-2000 Starting in 2007, Daylight Saving Time (DST) starts on the second Sunday of March and ends on the first Sunday of November. On the second Sunday in March, clocks are set ahead one hour. On the first Sunday in November, clocks are set back on hour. Not all places in the U.S. observe DST. In particular, Hawaii and most of Arizona do not use it. If DST is not required, all clock models allow this function to be disabled. See instructions below. ELTEC’s…continue reading
How Traffic Signals Keep Traffic Moving
Why Are Traffic Signals Necessary Beyond the obvious reasoning that traffic signals preserve safety at intersections and different junctures along a roadway, traffic signals are also largely responsible for maintaining a steady flow of traffic. Traffic signals are a necessary part of how civil engineers control and manage the pace of traffic thanks to coordination systems implemented alongside roadway design. Most people don’t think too much about their traffic light, at least not outside of…continue reading
What is the Purpose of Traffic Signals
Most of the time, traffic signals are a passive factor in our lives. Much like driving in general, people often learn the patterns, speeds, signals, and overall behavior of traffic and it becomes a natural part of their usual commute around the city. So it’s rare that people actually ask themselves what the purpose of traffic signals actually is. In many ways, the purpose is obvious. Traffic signals exist to control the flow of traffic in one way or another. The extended purpose, then, is to…continue reading