tag:blogger.com,1999:blog-2807967329010536074.post5009332511933740128..comments2023-07-09T16:11:35.984+01:00Comments on No to High Speed 2: Do 26 metre vehicles give higher seating capacities?Physiocrathttp://www.blogger.com/profile/13682019625346594568noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2807967329010536074.post-7359897868800845722013-03-19T21:28:35.436+00:002013-03-19T21:28:35.436+00:0026 metre vehicles are standard on the continent an...26 metre vehicles are standard on the continent and have been for several decades. The doors are at the extreme outer ends and this gives 11 bays, representing about 22 metres of furnishable space per vehicle. This is possible because the bogies are close to the extreme outer ends thus the space between platform and trains is subject to no significant variation due to platform curvature.<br /><br />In the case of the IEP, the bogies are set in from the ends to reduce the amount of centre overthrow on curves. But if they are too close together there will be kick-out at curves. The bogie spacing has not been published but it will probably be more than the 16 metres of a mark 3 but less than the spacing on an X2000 or Corail vehicle, which has a wheelbase of 18.3 metres between the inner axles.<br /><br />To prevent excessive gaps at platforms, the doorways on the IEP are moved inwards, thereby reducing the furnishable space per vehicle. The space can be advantageously used for toilets and cycles, but is less suitable for luggage unless the intention is to provide secure storage.<br /><br />The increased relative movement between vehicles is a potential source of ride quality problems due to yaw, which will have to be addressed.Physiocrathttps://www.blogger.com/profile/13682019625346594568noreply@blogger.comtag:blogger.com,1999:blog-2807967329010536074.post-51630690782387220812013-03-15T07:16:11.318+00:002013-03-15T07:16:11.318+00:00"As a minimum the Furnishable Space length sh... "As a minimum the Furnishable Space length shall be 144m for a nominally 208m long IEP Unit." Note the word MINIMUM in the specification, that means that the IEP proposal has to be a least as good as the existing trains in terms of capacity.<br /><br />What is laid down as a minimum in the specification does not mean that is what is being proposed under IEP, as it could be more than that, maybe you need to confirm what is actually proposed on the trains which gave been ordered.<br /><br />Without knowing what has been ordered your conclusion is based on an assumption and therefore could be inaccurate.Anonymousnoreply@blogger.com