Two-second rule two seconds as inadequate, and recommend a three-second rule. German law requires a minimum 0.9 second distance but when tested under relaxed conditions researchers found that their test subjects spent 41% of the test time at following distances under 0.9 second. The United States National Safety Council suggests that a three-second rule—with increases of one second per factor of driving difficulty—is more appropriate. Factors that make driving more difficult include poor lighting conditions (dawn and dusk are the most common); inclement weather (ice, rain, snow, fog, etc.), adverse traffic mix (heavy vehicles, slow vehicles, impaired drivers, pedestrians, bicyclists, etc.), and
Rule by decree Rule by decree Rule by decree is a style of governance allowing quick, unchallenged creation of law by a single person or group, and is used primarily by dictators, absolute monarchs and military leaders. The expression is also sometimes used when describing actions of democratic governments that are perceived to unduly bypass parliamentarian or popular scrutiny. Rule by decree allows the ruler to arbitrarily create law, without approval by a legislative assembly. When states of emergency such as martial law are in place, rule by decree is common. While rule by decree is easily susceptible to the whims and corruption