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The part that connects the rails to the seatpost is known as the "saddle clamp". It may be built into the top of the seatpost, or the seatpost may be essentially a pipe that provides a cylinder at the top (often 7 ⁄ 8 in (22 mm)) for a separate clamp to attach. The upper attachment point must be compatible with the rail configuration (though ...
The same lever or switch can then be used to return the saddle to its normal position for better pedaling efficiency. Most dropper seatposts use a hydraulically damped air or coil spring with cable, hydraulic, or electronic actuation. [15] Matej Mohorič used a dropper seatpost on his road bike to help him win the 2022 Milan–San Remo one-day ...
'Cyclists' had 84% lower lifecycle CO 2 emissions from all daily travel than 'non-cyclists', and the more people cycled on a daily basis, the lower was their mobility-related carbon footprint. Motorists who shifted travel modes from cars to bikes as their 'main method of travel' emitted 7.1 kg (16 lb) less CO 2 per day. [ 19 ]
Green vehicles are more fuel-efficient, but only in comparison with standard vehicles, and they still contribute to traffic congestion and road crashes. Well-patronized public transport networks based on traditional diesel buses use less fuel per passenger than private vehicles, and are generally safer and use less road space than private ...
Travel time cannot be predicted, with generally more demand than capacity. A road in a constant traffic jam is at this LOS, because LOS is an average or typical service rather than a constant state. For example, a highway might be at LOS D for the AM peak hour, but have traffic consistent with LOS C some days, LOS E or F others, and come to a ...
The corridor capacity in the passenger transport field refers to the maximum number of people which can be safely and comfortably transported per unit of time over a certain way with a defined width. The corridor capacity does not measure the number of vehicles which can be transported over such way, since the nuclear objective of passenger ...
Route capacity is the maximum number of vehicles, people, or amount of freight than can travel a given route in a given amount of time, usually an hour. It may be limited by the worst bottleneck in the system, [1] such as a stretch of road with fewer lanes. [2] Air traffic route capacity is affected by weather. [3]
Birds in cities that are exposed to traffic noise sing higher-frequency songs which increases the amplitude of their songs so that they are more likely to be heard over the noise. [35] One study did not necessarily directly provide a fatal effect for the tested birds, but the study showed that species abundance declined around major roads due ...
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