|
|
Post by jamesb on Oct 17, 2018 11:45:51 GMT
I am a creature of habit and have noticed a change in the last couple of weeks, with trains frequently held outside Leytonstone, and again between Leyton and Stratford, due to the volume of trains in the area - normally between 8.30am and 8.45am.
Maybe compounded yesterday by a passenger alarm at Leyton, and today by an out of service train occupying platform 2 at Leytonstone.
Could this be a sign that fewer trains are out of service during the peaks, contributing to the congestion?
|
|
|
|
Post by superteacher on Oct 17, 2018 12:55:59 GMT
I am a creature of habit and have noticed a change in the last couple of weeks, with trains frequently held outside Leytonstone, and again between Leyton and Stratford, due to the volume of trains in the area - normally between 8.30am and 8.45am. Maybe compounded yesterday by a passenger alarm at Leyton, and today by an out of service train occupying platform 2 at Leytonstone. Could this be a sign that fewer trains are out of service during the peaks, contributing to the congestion? I doubt it it’s that. The signalling can handle the level of service. It may just be a coincidence? Will be interesting to hear if it continues though. |
|
|
|
Post by MoreToJack on Oct 17, 2018 14:58:32 GMT
I am a creature of habit and have noticed a change in the last couple of weeks, with trains frequently held outside Leytonstone, and again between Leyton and Stratford, due to the volume of trains in the area - normally between 8.30am and 8.45am. Maybe compounded yesterday by a passenger alarm at Leyton, and today by an out of service train occupying platform 2 at Leytonstone. Could this be a sign that fewer trains are out of service during the peaks, contributing to the congestion? I doubt it it’s that. The signalling can handle the level of service. It may just be a coincidence? Will be interesting to hear if it continues though. It's entirely possible. Fewer trains in service equals increased loading on those that are running, in turn causing longer dwell times. Both Leytonstone and Stratford are significant interchanges, and being down a platform at Leytonstone also won't help matters. |
|
|
|
Post by superteacher on Oct 17, 2018 15:48:19 GMT
I doubt it it’s that. The signalling can handle the level of service. It may just be a coincidence? Will be interesting to hear if it continues though. It's entirely possible. Fewer trains in service equals increased loading on those that are running, in turn causing longer dwell times. Both Leytonstone and Stratford are significant interchanges, and being down a platform at Leytonstone also won't help matters. The OP referred to “fewer trains out of service. Which would hopefully lead to a better service and less overcrowding. |
|
|
|
Post by notverydeep on Oct 18, 2018 11:55:28 GMT
Between 0807 and 0839 (at Leytonstone) there are 19 westbound trains operating on a planned headway of 105 seconds (1 minute 45 seconds). This is the shortest planned headway that operates on the Central line and is equivalent to 34 trains per hour. Because this is the busiest part of the day in this direction, the dwell (station stop) times are longest as the number of people boarding and alighting at this time is higher than at other times. These dwell times are too long to allow this frequency to be achieved with following trains able run into the busiest stations from full speed. In order to make this work, extra time is allowed for the trains to run in from a slower speed (or from rest). This allows a shorter 'reoccupation time' (because the following train can get closer to the platform at lower speed) and in this way, the short headway and long dwell times can coexist. At this time of day, any train not being 'impeded' approaching Stratford or Mile End is likely to be running on a longer headway than planned...
|
|
