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A whippletree, or whiffletree, [1] [2] is a mechanism to distribute force evenly through linkages. It is also referred to as an equalizer, leader bar, or double tree. It consists of a bar pivoted at or near the centre, with force applied from one direction to the pivot and from the other direction to the tips. Several whippletrees may be used ...
Kavach is one of the most cost effective ATP systems in the world. The cost of installing it on the tracks, including equipment, is ₹ 50 lakh (US$60,000) per route kilometre and ₹ 70 lakh (US$84,000) to fit the equipment in one locomotive; compared to about ₹ 2 crore (US$240,000) for installation of other equivalent ATP systems available ...
The costs of installing lights and gates, he said, has gotten out of hand. “The railroads increased the cost to upgrade a crossing to $150,000, then $200,000, then $250,000, then to $300,000 and ...
Collision avoidance by braking is appropriate at low vehicle speeds (e.g. below 50 km/h (31 mph)), while collision avoidance by steering may be more appropriate at higher vehicle speeds if lanes are clear. [3] Cars with collision avoidance may also be equipped with adaptive cruise control, using the same forward-looking sensors.
The U.S. Air Force's F-16D Ground Collision Avoidance Technology (GCAT) aircraft. An airborne collision avoidance system (ACAS, usually pronounced as ay-kas) operates independently of ground-based equipment and air traffic control in warning pilots of the presence of other aircraft that may present a threat of collision. If the risk of ...
HGTV home renovation stars Jonathan and Drew Scott – best known as the Property Brothers – are fearful that Trump’s proposed tariffs could send construction costs soaring.
To rescind a rule, the APA requires agencies to release a detailed proposal, including legal justifications and potential costs, and accept and respond to public comments. That can take months or ...
Turnstile jumping in the Moscow Metro. Fare evasion or fare dodging [1] is the act of travel without payment on public transit. When considered problematic, it is mitigated by revenue protection officers and ticket barriers, staffed or automatic, are in place to ensure only those with valid tickets may access the transport.