jw35's posts

63 posts found

Re: Fendon Road roadworks - effect on journey times

  By: jw35 on Sept. 16, 2019, 11:50 a.m.

I've tweaked the graphs slightly to split the 'hourly mean journey time' set into two - one before and one after the start of the Fendon Road works. There are clear differences, but remember that this is close to before and after the start of scho...

Fendon Road roadworks - effect on journey times

  By: jw35 on Sept. 12, 2019, 1:49 p.m.

Earlier this week work started to rebuild the roundabout at the junction of Fendon Road, Mowbrary Road and Queen Edith's Way near Addenbrokes. This is a busy junction and the work involves road closures and temporary traffic lights. You'd expect i...

How big is your car park?

  By: jw35 on Sept. 9, 2019, 1:34 p.m.

It's easy enough to fit a car park with entry and exit counters and from them work out how many cars are inside at any one time. But what most people want to know is how many free spaces there are, and to work that out you need to know the car par...

Slightly-broken car park graphs

  By: jw35 on Sept. 2, 2019, 10:20 a.m.

There's currently a minor problem with the car park occupancy graph for Trumpington.

Until recently, the only feed we had of car park occupancy was a text based one intended for human consumption that said things like:

Car park P&R Trumpi...

Re: Peterborough Area

  By: jw35 on July 11, 2019, 10:33 a.m.

Not really. Doing so requires some rework of how we import timetable data (it's already too slow and adding 'East Midlands' would make that worse). This isn't particularly difficult but at the moment other work is taking priority.

Re: Changes to bus routes at Addenbroke's

  By: jw35 on July 4, 2019, 11:23 a.m.

Screenshot, given that StageCoach tend to delete these announcements:

Re: Changes to bus routes at Addenbroke's

  By: jw35 on June 25, 2019, 11:32 a.m.

The situation at Addenbroke's is now complicated by a failure of the bollards on the road outside the Royal Papworth. Stagecoach's Service Announcement is here (and there's a copy below) so it looks as if the services have reverted to the old rout...

Re: Cambridge Smart City Meetup

  By: jw35 on June 20, 2019, 10:27 a.m.

We'd be very happy to talk. Drop us a line at info@smartcambridge.org and we'll sort something out.

Changes to bus routes at Addenbroke's

  By: jw35 on April 30, 2019, 9:53 a.m.

On Monday 29 April, Stagecoach's Busway A and Busway D services were rerouted at Addenbrooke's Hospital. Unfortunately these changes haven't made it to the Traveline National Dataset from which we derive timetables and routes for our various web p...

Re: Easter Monday

  By: jw35 on April 26, 2019, 8:43 a.m.

Thanks for the report. We are aware that we currently fail to correctly recognise Bank Holidays. It's a complicated problem thanks to the byzantine way that such variations are represented in the timetable and we've not yet managed to find the tim...

Re: Peterborough Area

  By: jw35 on April 18, 2019, 9:42 a.m.

We have real-time bus position data for Peterborough, but we don't currently have is the timetable data. That's becasue Peterborough falls in the 'East Midlands' timetable region and we only currently load data for the 'East Anglia' and 'South Eas...

Re: Bus Live Data Map

  By: jw35 on March 25, 2019, 10:30 a.m.

We think we understand the bogus 'Ghost Buses'. Originally the map only displayed a bus the first time the bus reported its position after the map displayed. This made it slow to start. We recently enhanced it to start up by loading the current po...

Re: Bus Live Data Map

  By: jw35 on March 16, 2019, 4:17 p.m.

Yes, the small icons represents the last known positions of buses that we have been tracking but for which we haven't received a position report in the last few minutes. We don't entirely understand why we see quite so many of these, but failures ...

Further unpublished timetable changes

  By: jw35 on March 8, 2019, 10:22 a.m.

In addition to issues at the station (which also affect Drummer Street bus station) we are aware of a further Stagecoach service alteration that hasn't made it into Traveline National Dataset: the Traveline data shows a 6|Citi Mon-Fri departure fr...

Re: Changes to bus stop usage at the rail station

  By: jw35 on March 1, 2019, 12:49 p.m.

Here's an announcement by Stagecoach's about the change, with additional details. This announcement implies the new arrangements may be temporary and might revert at the end of March.