tag:blogger.com,1999:blog-7218149071529011844.post5270988503248284654..comments2024-03-09T05:03:54.979-05:00Comments on Public Transit in Ottawa: Confederation Line stations should be designed "with safety in mind"Peter Raaymakershttp://www.blogger.com/profile/10883553886241429786noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7218149071529011844.post-29731869514364427362013-08-28T15:55:02.137-04:002013-08-28T15:55:02.137-04:00The reason for having side platforms is the tunnel...The reason for having side platforms is the tunneling style: since one large tunnel is being dug for both tracks the trains will run next to each other as they enter the stations. Putting a platform in the middle may not make the station wider overall, but it does require wider tunnels leading away from the stations so the tracks have room to separate.<br /><br />Ottawa's tunneling method contrasts with the use of TBMs like Eglinton Crosstown. When TBMs are used for each tunnel separately the space between tracks is already there so centre platforms become the cheapest option. Unfortunately the geology under downtown (rock) doesn't permit TBM use. Alexnoreply@blogger.comtag:blogger.com,1999:blog-7218149071529011844.post-22970836972577058242013-08-23T09:45:56.393-04:002013-08-23T09:45:56.393-04:00Only a minor comment, the platform length of 180 m...Only a minor comment, the platform length of 180 metres was dropped to 150 metres when the tunnel alignment was changed to Queen St. from the earlier cross country alignment. The tunnel right of way is also far shallower than the earlier design. Both changes were to save money and stay on budget. At 150 metres the platfroms will be the roughly the same length as a Toronto Subway or Montreal Metro staion. The platform lengths outside of the tunnel were kept at 120 metres and designed to be easily expandable in the future. Both tunnel and non tunnel platforms are abnormally long compared to other North American LRT systems. These lengths will help greatly expand the systems passenger carrying capacity.Haveacownoreply@blogger.com