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Archive for November, 2018

Equipment Malfunctions

Obviously in a system as large as Oyster there are going to be occasional malfunctions.  Many of them, while annoying, will not have serious repercussions.  If a gate stops working it will usually be blocked out of use, but what happens if the error doesn’t affect the actual gate function?  I have become aware of three instances recently where Oyster data has been compromised in some way.

Back in the summer a single gate at London Bridge failed to update the date.  Anyone using PAYG exiting through that gate ended up with two incomplete journeys, one ending on the previous day and one starting at their origin on that day.  Read the rest of this entry »

New OSI at Tottenham Court Road

A new OSI was activated between gatelines at Tottenham Court Road towards the end of September.  There’s a 10 minute allowance either way.  The OSI List has been updated (including the change history).

Discontinued OSI at Mansion House

TfL have decided to remove the OSI between Cannon Street NR and Mansion House LU.  This was added some time ago when reconstruction work at Cannon Street resulted in closure of the LU station.  They say that analysis of journeys shows very few people use this OSI compared to the thousands using the NR-LU OSI at Cannon Street itself.  I’ve removed this OSI from the list here.