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On the other hand, some researchers suggest a systematic paradigm shift away from cars and planes to intermodal systems that improve the sustainability of the system as a whole. High-speed rail (HSR) is arguably such an investment that can further this shift and help to achieve a more diversified and balanced transportation system.

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CALIFORNIA HIGH-SPEED RAIL AUTHORITY SUSTAINABLITY POLICY POLI-PLAN-03 APPro~ Name 1/ Title Date I UO'' • SUBJECT: Sustainability AGENCY POLICY The Authority will deliver a sustainable high-speed rail system for California that serves as a model for sustainable rail infrastructure.

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Circuit breaker - Wikipedia

2019-4-20 · A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be