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Data about transport in London!

New TfL report about onwards travel from Central London termini

Just noticed that TfL have recently published a report about onwards travel from the main Central London rail termini, which you can find here. It looks at who uses the termini, where they are going (in terms of location and trip purpose) and how they get there. Here’s a chart of onwards distance travelled by mode:

One of the more interesting findings is the make-up of the group of people that usually cycle their onwards journey: “Cycling is dominated by a particular demographic. Eighty two per cent of cycle journeys are made by men and 60 per cent of cyclists are aged between 25 and 44”. The new Cycle Hire scheme doesn’t seem to have changed this much.

Filed under: 2010, Cycling, DfT, London, Rail, Report

TfL report on London Travel Demand Survey

Not sure when it came out, but TfL have published a report (link here) analysing data from the 2007-10 dataset of their London Travel Demand Survey. It’s full of interesting stuff about how, when and where Londoners travel, the chart below being just one example.

Filed under: 2010, London, Report, TfL

Update on 20mph zones in London

We posted before about data on 20mph zones in London, using numbers from this 2008 TfL report. TfL have now responded to an FOI request with updated data on 20mph zones. You can download the data in .xls format from the TfL response, but we have done a couple of charts summing up the overall London trend and a borough comparison below.

This chart shows that the last two years (2008 to 2010) have seen a particularly large increase in the total length of streets in 20mph. By 2010, nearly 2,800 km of London streets were in 20mph zones, 18% of the total.

This chart shows the proportion of streets/roads in 20mph zones in each London borough in 2008 and 2010. There is huge variation between boroughs, with a general pattern of East London boroughs tending to have more 20mph zones. Nearly every borough has increased their 20mph zone coverage since 2008, with the interesting exceptions of Hackney and Tower Hamlets.

Note: the TfL data gives a zero figure for 20mph in the City of London, but a dash (-) in the cases of Westminster and Kensington and Chelsea. However, as far as we can tell there aren’t any 20mph streets in either of those boroughs, so we’ve put them in as zero for now, with the proviso that it sounds like Exhibition Road (which has stretches in both boroughs) will be 20mph when its refurbishment is complete.

Finally, don’t forget you can see a map of streets in 20mph zones in London here. It would be nice if this were available as an overlay for mapping services like Google Maps and OSM …

Filed under: 2010, Boroughs, London, Speed, TfL

Pedestrian Countdown Trial: Unpublished Appendices

The Pedestrian Countdown trial was conducted in 2010 for Transport for London by consultancy Transport Research Laboratory (TRL).

The “blackout” phase used at pedestrian junctions where neither the green nor red man is showing was replaced by a “countdown” phase, where a timer counts down the seconds that pedestrians have to finish crossing the road.

A number of other changes were also made to signal timings, for both road traffic and pedestrians. The following is a summary:

Pedestrian phases

Increase

Decrease

Green man

X

Blackout/countdown

X

Pedestrian red

X

Total pedestrian time

X

Road traffic phases
Green

X

Red

X

– “Pedestrian red” is the grace period at the end of the pedestrian phase where the red man appears but road traffic signals are still red.

– “Blackout” is the period for pedestrians after the green man where there is no green or red man showing, and is the phase wholly replaced with Countdown.

Changes in time

We have composed the following graphs with data from the TRL Technical Appendices (see below), which show average changes to both pedestrians and road traffic timings across all sites:

Changes to pedestrian time

Changes to road traffic time

N.B. “After” in the pedestrian phase is the “After 1” trial, immediately after PcATS is installed. The appendices do not contain the figures for the tweaked “After 2” trial, three months later, though we are told the green time is the same. We can infer from the decreased green and increased red time that road traffic faces in the After 2 trial (compared to After 1) that either blackout/countdown or pedestrian red time (or both) is slightly increased.

Documents

Transport for London published a summary report following the trial:

Pedestrian Countdown Project Report

It contains several unpublished appendices which we have obtained through Freedom of Information request and publish here for your perusal.

PCaTS Technical Appendices

Appendix A – Site Maps

Appendix B – Questionnaires

Appendix C – Additional Video  and Observation Data

Appendix D – Glossary of Terms

Filed under: 2010, Report, Safety, TfL, Traffic