1 For instance, TrafficLights.com has a variety of lights that can cost $159 to $379. 2  According to the Arizona Department of Transportation, a modern traffic signal can cost $80,000 to $100,000 to install, depending on the complexity of the location and the characteristics of the traffic in the area.
exhortation-a communication intended to urge or persuade the recipients to take some action. communicating, communication-the activity of communicating; the activity of conveying information; they could not act without official communication from Moscow.
Excretion is defined as the process of expelling waste matter, or the waste matter expelled by this process. 1  When a person goes to the bathroom to urinate, this is an example of excretion. 2  Urine is an example ofexcretion. 3  the act or process of excreting.  waste matter excreted; sweat, urine, etc.