Why is there no Triple Decker bus?

Mostly for practical purposes. There are lots of bridges over roads that are high enough for a double decker bus to pass underneath, there are few, if any, that are high enough for a triple decker bus to pass underneath. That's assuming that a triple decker bus could be made stable enough to not risk tippling over.



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A double-decker bus or double-deck bus is a bus that has two storeys or decks. They are used for mass transport in the United Kingdom, the United States, Canada, New Zealand, Europe, Asia and also in cities such as Sydney; the best-known example is the red London bus, namely the AEC Routemaster.

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The main reason for their continued popularity was because the single-level buses simply couldn't hold enough people, and the longer accordion version couldn't handle London's narrow streets. People also liked the viewing capacity and having open tops.

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Tipping over accidents. Because double-decker buses are tall, box-shaped and have a high center of gravity, when they are involved in certain types of accidents they are more likely to tip over than other types of buses.

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To ensure stability, a double decker must withstand a tilt of up to 28 degrees from the horizontal plane on either side without flipping over, according to road traffic construction and vehicle maintenance regulations. This is tested with weights placed on the upper deck to represent a full load of passengers.

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In the UK, the tunnels are too low. They won't fit! That's also the case with overhead clearance for many overpasses, bridges etc. Every nation's RR have a 'loading gauge', the distance beside and over the track inside which rolling stock has to fit.

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The main reason for their continued popularity was because the single-level buses simply couldn't hold enough people, and the longer accordion version couldn't handle London's narrow streets. People also liked the viewing capacity and having open tops.

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Our professional staff and fleet of clean, comfortable, well maintained wheelchair accessible, state-of-the-art double decker buses enable us to provide you with the dependable, quality service you deserve – no matter if your journey is cross-country or a mere few cities away!

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HS2 Ltd, the state-funded body responsible for delivering the line, failed to add enough contingency to its cost estimates after using a calculation method that was inappropriate for the early stage of the programme.

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The entirety of the HS2 rail link between London and Birmingham is to be scrapped and replaced with a train of Dacia Sanderos welded together, the government has announced.

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High Speed 2 (HS2) is a planned high-speed railway line and network of passenger train services in England.

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Lo told the Post that the middle area of the lower deck of a bus was relatively safe for passengers in a collision. “The area is closer to the centre of gravity of the vehicle, so passengers will absorb less vibration and impact force when the vehicle collides with something,” Lo explained.

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