Vision Zero aims to eliminate road traffic fatalities and serious injuries globally. Started in Sweden in 1997, approved by parliament in 1997. Core principle: life and health cannot be exchanged for societal benefits. Emphasizes shared responsibility between designers and road users
Speed bumps use vertical deflection to slow vehicle traffic. Speed humps have traverse distance of 3-4.3m, typically 8-10cm high. Speed cushions are multiple small bumps with spaces between them. Speed tables are long humps with flat sections for passenger cars
ICAO defines disruptive passenger as someone who disrupts airport or aircraft order. Tokyo Convention makes it unlawful to jeopardize aircraft safety or good order. FAA increased enforcement against unruly passengers in 2020-2021
Full coverage costs average $2,458 annually, minimum coverage $678. Monthly full coverage costs $205, minimum coverage $56. Men pay more than women due to higher driving risk
Particle moving with acceleration a = (2t - 6) m/s² finds velocity at t = 6s and position at t = 11s. Particle moving right at 12 ft/s with acceleration 2 ft/s² finds position at t = 10s. Particle traveling with velocity v = (12 - 3t²) m/s finds acceleration at t = 4s. Particle moving with constant acceleration finds velocity at t = 4s
The word "jaywalker" originated in Kansas, not New York City. The word evolved from the older "jay-driver" meaning wrong-side-driving. In 1905, The Kansas City Star warned against drivers driving on wrong side. The word initially referred only to pedestrians crossing streets. Both words come from the word "jay," meaning greenhorn or rube