Smart work zone Smart work zone A smart work zone or intelligent work zone refers to a site-specific configuration of traffic control technology deployed within a roadway work zone to increase the safety of construction workers, provide "real-time" travel information, and efficiently route motorists through a work zone. Smart work zones reduce the dependency on human "flaggers" and make the work zone safer for roadway workers. Common terms used to describe equipment configuration used within smart work zones: Smart work zones often use radar guns or other non-intrusive sensors to detect the presence and speed of vehicles approaching a work zone, in order
Sosigenes the Peripatetic Sosigenes the Peripatetic Sosigenes the Peripatetic () was a philosopher living at the end of the 2nd century AD. He was the tutor of Alexander of Aphrodisias and wrote a work "On Revolving Spheres", from which some important extracts have been preserved in Simplicius's commentary on Aristotle's "De Caelo". Sosigenes criticized both Aristotle and Eudoxus for their imperfect theory of celestial spheres and also the use of epicycles, which he felt to be inconsistent with Aristotle's philosophical postulates. He pointed out that the planets varied markedly in brightness, and that eclipses of the sun are sometimes total and sometimes annular,