TfL Cycling Infrastructure Database

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TfL Cycling Infrastructure Database

Martin - CycleStreets


Transport for London (TfL) have created a new database of cycling
infrastructure, containing 240,000 assets, covering all of Greater London.

This groundbreaking database contains every cycle infrastructure asset
within Greater London, including assets on and off-carriageway. The assets
surveyed are: cycle parking; signals; signage; traffic calming measures;
restricted points (e.g. steps); advanced stop lines; crossings; cycle
lanes/tracks; and restricted routes (e.g. pedestrian only routes).

TfL is keen to make this available to the OpenStreetMap community under a
compatible open license, to ensure maximum use of the CID. TfL is also
potentially willing to consider tool development to help facilitate
sensitive merging in of this data.

There is a new Wiki page, giving full details, at:
https://wiki.openstreetmap.org/wiki/TfL_Cycling_Infrastructure_Database


Demonstrator map:
-----------------

A demonstrator map, for the purposes only of evaluation by the OSM
community at this stage, has been created by CycleStreets.

This demonstrator map contains only one of the 25 areas that have been
surveyed.

We are specifically seeking comments on data quality and usefulness of this
data from the OSM community. Initial analysis by CycleStreets is that the
data is of excellent quality, and very suitable for conflation into OSM, to
increase both comprehensiveness and metadata quality.

https://tflcid.cyclestreets.net/
(Use the controls on the right to change feature type.)

Usage notes: The controls on the right of the map allow the different
feature types to be selected. The OSM layer (available at zoom level 19+)
also provides a live feed from the OSM API, to enable quick comparisons.
The two photos of each asset are in the process of being supplied; those
already available and cleared in GDPR terms are included in the popup.

It is stressed that at this point, no permission is given for re-use of the
data in any way, but TfL strongly intends to make this available in future.
All 25 areas would be covered in the final data release, not merely the one
shown currently in the demonstrator map.


Feedback is very strongly encouraged, as soon as possible. What are
people's thoughts?


Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


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Re: TfL Cycling Infrastructure Database

Jez Nicholson
Firstly, exceptionally pleased that TfL see OSM as *the* major people access cycling data :D

Their data is highly accurate, and there's definitely going to need to be some clever conflation tooling. Bike stands are fine, but advance stop lines, etc. are specialist subjects in my book. I'm sightly overawed by the quantity and am unsure whether volunteers are going to be able to get through it, but again that is something you'll be talking about in your report, no? There would need to be some tool development regardless of who does the conflation.

Also, you could start some discussion in the talk tab of that wiki page if there's anything that needs thrashing out.

...and now I know what a "Sheffield" bike stand is :)

Regards,
              Jez

On Fri, May 10, 2019 at 3:42 PM Martin Lucas-Smith - CycleStreets <[hidden email]> wrote:


Transport for London (TfL) have created a new database of cycling
infrastructure, containing 240,000 assets, covering all of Greater London.

This groundbreaking database contains every cycle infrastructure asset
within Greater London, including assets on and off-carriageway. The assets
surveyed are: cycle parking; signals; signage; traffic calming measures;
restricted points (e.g. steps); advanced stop lines; crossings; cycle
lanes/tracks; and restricted routes (e.g. pedestrian only routes).

TfL is keen to make this available to the OpenStreetMap community under a
compatible open license, to ensure maximum use of the CID. TfL is also
potentially willing to consider tool development to help facilitate
sensitive merging in of this data.

There is a new Wiki page, giving full details, at:
https://wiki.openstreetmap.org/wiki/TfL_Cycling_Infrastructure_Database


Demonstrator map:
-----------------

A demonstrator map, for the purposes only of evaluation by the OSM
community at this stage, has been created by CycleStreets.

This demonstrator map contains only one of the 25 areas that have been
surveyed.

We are specifically seeking comments on data quality and usefulness of this
data from the OSM community. Initial analysis by CycleStreets is that the
data is of excellent quality, and very suitable for conflation into OSM, to
increase both comprehensiveness and metadata quality.

https://tflcid.cyclestreets.net/
(Use the controls on the right to change feature type.)

Usage notes: The controls on the right of the map allow the different
feature types to be selected. The OSM layer (available at zoom level 19+)
also provides a live feed from the OSM API, to enable quick comparisons.
The two photos of each asset are in the process of being supplied; those
already available and cleared in GDPR terms are included in the popup.

It is stressed that at this point, no permission is given for re-use of the
data in any way, but TfL strongly intends to make this available in future.
All 25 areas would be covered in the final data release, not merely the one
shown currently in the demonstrator map.


Feedback is very strongly encouraged, as soon as possible. What are
people's thoughts?


Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


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Re: TfL Cycling Infrastructure Database

Martin - CycleStreets


On Fri, 10 May 2019, Jez Nicholson wrote:

> Their data is highly accurate,

Yes, that seems to me as well to be the case. We're just awaiting more
images to be uploaded to the site (every feature has two images, but not
all are GDPR-cleared yet).

I'd welcome as many eyes as possible on the sample data to get a good
assessment of the data quality.
https://tflcid.cyclestreets.net/


> and there's definitely going to need to be some clever conflation
> tooling. Bike stands are fine, but advance stop lines, etc. are
> specialist subjects in my book. I'm sightly overawed by the quantity and
> am unsure whether volunteers are going to be able to get through it, but
> again that is something you'll be talking about in your report, no?

Yes, that will be a key issue. Bear in mind that the sample data is only
one of *25* areas, so there's a lot of data.

Clearly, pre-translations in the data to convert the CID schema to OSM
tagging would remove a lot of manual work, and a conflation tool could work
on a similar basis to the England Cycling Data project tool [1]. I think
there's scope for some pre-processing (e.g. eliminating locations in the
CID data that clearly already exist in OSM based on a nearness search), and
the ability for multiple features to be done at once, e.g. a screen where
say 10-20 cycle parking locations could be reviewed at once. Again, views
on this would be extremely welcome.


> There would need to be some tool development regardless of who does the
> conflation.

Indeed. I'd welcome pointers to up-to-date information on the state of such
tools at the moment, e.g. the JOSM tool, and other developments currently
happening.


[1] See images on:
https://wiki.openstreetmap.org/wiki/England_Cycling_Data_project



Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


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Re: TfL Cycling Infrastructure Database

Great Britain mailing list
In reply to this post by Jez Nicholson
This looks very interesting, well worth investigating, but could any comments be posted here please -  We get notifications, they're recorded & date sorted. I've yet to see a wiki discussion that doesn't become incoherent after a dozen posts.  
.
DaveF 

On 10/05/2019 17:03, Jez Nicholson wrote:
Firstly, exceptionally pleased that TfL see OSM as *the* major people
access cycling data :D

Their data is highly accurate, and there's definitely going to need to be
some clever conflation tooling. Bike stands are fine, but advance stop
lines, etc. are specialist subjects in my book. I'm sightly overawed by the
quantity and am unsure whether volunteers are going to be able to get
through it, but again that is something you'll be talking about in your
report, no? There would need to be some tool development regardless of who
does the conflation.

Also, you could start some discussion in the talk tab of that wiki page if
there's anything that needs thrashing out.

...and now I know what a "Sheffield" bike stand is :)

Regards,
              Jez

On Fri, May 10, 2019 at 3:42 PM Martin Lucas-Smith - CycleStreets <
[hidden email]> wrote:


Transport for London (TfL) have created a new database of cycling
infrastructure, containing 240,000 assets, covering all of Greater London.

This groundbreaking database contains every cycle infrastructure asset
within Greater London, including assets on and off-carriageway. The assets
surveyed are: cycle parking; signals; signage; traffic calming measures;
restricted points (e.g. steps); advanced stop lines; crossings; cycle
lanes/tracks; and restricted routes (e.g. pedestrian only routes).

TfL is keen to make this available to the OpenStreetMap community under a
compatible open license, to ensure maximum use of the CID. TfL is also
potentially willing to consider tool development to help facilitate
sensitive merging in of this data.

There is a new Wiki page, giving full details, at:
https://wiki.openstreetmap.org/wiki/TfL_Cycling_Infrastructure_Database


Demonstrator map:
-----------------

A demonstrator map, for the purposes only of evaluation by the OSM
community at this stage, has been created by CycleStreets.

This demonstrator map contains only one of the 25 areas that have been
surveyed.

We are specifically seeking comments on data quality and usefulness of
this
data from the OSM community. Initial analysis by CycleStreets is that the
data is of excellent quality, and very suitable for conflation into OSM,
to
increase both comprehensiveness and metadata quality.

https://tflcid.cyclestreets.net/
(Use the controls on the right to change feature type.)

Usage notes: The controls on the right of the map allow the different
feature types to be selected. The OSM layer (available at zoom level 19+)
also provides a live feed from the OSM API, to enable quick comparisons.
The two photos of each asset are in the process of being supplied; those
already available and cleared in GDPR terms are included in the popup.

It is stressed that at this point, no permission is given for re-use of
the
data in any way, but TfL strongly intends to make this available in
future.
All 25 areas would be covered in the final data release, not merely the
one
shown currently in the demonstrator map.


Feedback is very strongly encouraged, as soon as possible. What are
people's thoughts?


Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


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Re: TfL Cycling Infrastructure Database

Rob Nickerson
In reply to this post by Martin - CycleStreets
Hi Martin, Hi all,

-- Second attempt to send this mail, this time with attachments hosted on cloud (feel free to copy to OSM wiki)

Good to see the TfL project moving forward. As background for those that were not aware, Transport for London first approached the OpenStreetMap United Kingdom community interest company towards the end of 2018. We met them twice and helped them to scope out the project that Martin has now picked up via the OSM UK Talent Directory [1].

I realise in my email to this list in March I promised some more background (beyond what had gone into the board meeting minutes, here and on Loomio). I'm not sure I delivered on that promise - March and April is a blur in my memory as work was non-stop.

I think the easiest way to rectify that is to share the text from the tender document (see [2]). I also attach the slides from the second meeting we had with TfL.

One key extract from that document relates to the desire to investigate how best to integrate this data into OSM. As noted although it is possible to add the CID data to OpenStreetMap using the standard editing tools alone, this was identified as a potentially undesirable solution (to be explored as part of this project) due to the long time it would take and the difficulty of ensuring all data is added. I for one look forward to seeing what Martin discovers as part of the project. I have a small bit of experience using Ilya's conflation tool, but the earlier Potlatch2 merge tool (used on England cycle data) was before I joined OSM. Keen to find out what the current best practice is.

The other key extract is related to how the data was collected:
  • The first phase of the project involved the surveying of greater London that was split into 25 data packages, 13 in Inner and 12 in Outer London. A total of 23,728 km of public highways was surveyed as part of this project. More than 30 surveyors have been on site 7 days a week to record all cycling infrastructure currently in place and over 477,000 asset photographs were captured.
  • 203,900 points and 34,931 individual lines were captured. The linear features cover a total distance of 2,088km (1 1⁄2 times the length of Britain).
  • Two photographs were captured of every asset.
  • Checking and correction has been undertaken to ensure that the quality of the data met the 95% thresholds agreed with TfL.
The approach of ground survey data collection, along with the photographs, is essentially the same as we do. I think this has helped to ensure that the data collected is of high quality and accuracy (unlike some other open data we have seen in the past which may have been poorly digitised from within the office).

It would be great if we can all take a moment to look at the data, consider the options for getting it in to OSM, and share feedback here for Martin to capture within the project :-)

P.S. Whilst this one is London based, the learning from it is valuable to OSM UK as it ticks of some of our aims (increasing the amount of quality data in OSM and promoting the release of open data). What we learn here can be applied to projects as and when then come up throughout the UK, IoM and CI.

Thank you,

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Re: TfL Cycling Infrastructure Database

Jez Nicholson
If Martin comes to the OSMUK AGM he could do a talk and/or we could host a discussion.

Regards,
              Jez

On Tue, May 14, 2019 at 10:11 PM Rob Nickerson <[hidden email]> wrote:
Hi Martin, Hi all,

-- Second attempt to send this mail, this time with attachments hosted on cloud (feel free to copy to OSM wiki)

Good to see the TfL project moving forward. As background for those that were not aware, Transport for London first approached the OpenStreetMap United Kingdom community interest company towards the end of 2018. We met them twice and helped them to scope out the project that Martin has now picked up via the OSM UK Talent Directory [1].

I realise in my email to this list in March I promised some more background (beyond what had gone into the board meeting minutes, here and on Loomio). I'm not sure I delivered on that promise - March and April is a blur in my memory as work was non-stop.

I think the easiest way to rectify that is to share the text from the tender document (see [2]). I also attach the slides from the second meeting we had with TfL.

One key extract from that document relates to the desire to investigate how best to integrate this data into OSM. As noted although it is possible to add the CID data to OpenStreetMap using the standard editing tools alone, this was identified as a potentially undesirable solution (to be explored as part of this project) due to the long time it would take and the difficulty of ensuring all data is added. I for one look forward to seeing what Martin discovers as part of the project. I have a small bit of experience using Ilya's conflation tool, but the earlier Potlatch2 merge tool (used on England cycle data) was before I joined OSM. Keen to find out what the current best practice is.

The other key extract is related to how the data was collected:
  • The first phase of the project involved the surveying of greater London that was split into 25 data packages, 13 in Inner and 12 in Outer London. A total of 23,728 km of public highways was surveyed as part of this project. More than 30 surveyors have been on site 7 days a week to record all cycling infrastructure currently in place and over 477,000 asset photographs were captured.
  • 203,900 points and 34,931 individual lines were captured. The linear features cover a total distance of 2,088km (1 1⁄2 times the length of Britain).
  • Two photographs were captured of every asset.
  • Checking and correction has been undertaken to ensure that the quality of the data met the 95% thresholds agreed with TfL.
The approach of ground survey data collection, along with the photographs, is essentially the same as we do. I think this has helped to ensure that the data collected is of high quality and accuracy (unlike some other open data we have seen in the past which may have been poorly digitised from within the office).

It would be great if we can all take a moment to look at the data, consider the options for getting it in to OSM, and share feedback here for Martin to capture within the project :-)

P.S. Whilst this one is London based, the learning from it is valuable to OSM UK as it ticks of some of our aims (increasing the amount of quality data in OSM and promoting the release of open data). What we learn here can be applied to projects as and when then come up throughout the UK, IoM and CI.

Thank you,
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Re: TfL Cycling Infrastructure Database

Martin - CycleStreets
In reply to this post by Martin - CycleStreets


The demonstrator map showing this data from TfL now has an extensive set of
filters for each feature type:

https://tflcid.cyclestreets.net/

E.g. for cycle lane/track, you can now filter for segregated, shared,
prority at sideroads, full/part time, mandatory, stepped track, etc.

These filters match the schema definition at:
https://tflcid.cyclestreets.net/TfL_CID_Schema.pdf

There are also a lot more images loaded now.

My general impression is that the data does seem very accurate. I would
welcome more eyes on this, and thoughts generally on the use of this data
in OSM. Hopefully the filtering will make this easier to find various kinds
of infrastructure.

I am about to circulate a suggested mapping of the TfL data to OSM
equivalents, where equivalent tags exist, for comments.


NB The new filtering controls have a couple of URL persistency bugs - I'll
mop these up shortly. So please be aware of this if sending a link.


Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


On Fri, 10 May 2019, Martin Lucas-Smith - CycleStreets wrote:

>
>
> Transport for London (TfL) have created a new database of cycling
> infrastructure, containing 240,000 assets, covering all of Greater London.
>
> This groundbreaking database contains every cycle infrastructure asset
> within Greater London, including assets on and off-carriageway. The assets
> surveyed are: cycle parking; signals; signage; traffic calming measures;
> restricted points (e.g. steps); advanced stop lines; crossings; cycle
> lanes/tracks; and restricted routes (e.g. pedestrian only routes).
>
> TfL is keen to make this available to the OpenStreetMap community under a
> compatible open license, to ensure maximum use of the CID. TfL is also
> potentially willing to consider tool development to help facilitate
> sensitive merging in of this data.
>
> There is a new Wiki page, giving full details, at:
> https://wiki.openstreetmap.org/wiki/TfL_Cycling_Infrastructure_Database
>
>
> Demonstrator map:
> -----------------
>
> A demonstrator map, for the purposes only of evaluation by the OSM
> community at this stage, has been created by CycleStreets.
>
> This demonstrator map contains only one of the 25 areas that have been
> surveyed.
>
> We are specifically seeking comments on data quality and usefulness of this
> data from the OSM community. Initial analysis by CycleStreets is that the
> data is of excellent quality, and very suitable for conflation into OSM, to
> increase both comprehensiveness and metadata quality.
>
> https://tflcid.cyclestreets.net/
> (Use the controls on the right to change feature type.)
>
> Usage notes: The controls on the right of the map allow the different
> feature types to be selected. The OSM layer (available at zoom level 19+)
> also provides a live feed from the OSM API, to enable quick comparisons.
> The two photos of each asset are in the process of being supplied; those
> already available and cleared in GDPR terms are included in the popup.
>
> It is stressed that at this point, no permission is given for re-use of the
> data in any way, but TfL strongly intends to make this available in future.
> All 25 areas would be covered in the final data release, not merely the one
> shown currently in the demonstrator map.
>
>
> Feedback is very strongly encouraged, as soon as possible. What are
> people's thoughts?
>
>
> Martin,                     **  CycleStreets - For Cyclists, By Cyclists
> Developer, CycleStreets     **  https://www.cyclestreets.net/
>
>
> _______________________________________________
> Talk-GB mailing list
> [hidden email]
> https://lists.openstreetmap.org/listinfo/talk-gb
>

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Re: TfL Cycling Infrastructure Database

TonyS

Hi

Looking at the demo I can't think of a reason why OSM would not want this data - I believe we do want this data.

Questions I have -

  • Are the tags suitable for a global database? Can and should they be reused elsewhere in UK? or globally? Is there a need for specific prefixed TfL tags?
  • Are there clashes with other cycling data in London?  What is a resolution strategy?
  • Will import and integration be performed by automatic processing? Usual OSM import rules? Clash detection and sanity checking?

Regards

Tony - TonyS999

On 10/06/2019 23:13, Martin Lucas-Smith - CycleStreets wrote:


The demonstrator map showing this data from TfL now has an extensive set of filters for each feature type:

https://tflcid.cyclestreets.net/

E.g. for cycle lane/track, you can now filter for segregated, shared, prority at sideroads, full/part time, mandatory, stepped track, etc.

These filters match the schema definition at:
https://tflcid.cyclestreets.net/TfL_CID_Schema.pdf

There are also a lot more images loaded now.

My general impression is that the data does seem very accurate. I would welcome more eyes on this, and thoughts generally on the use of this data in OSM. Hopefully the filtering will make this easier to find various kinds of infrastructure.

I am about to circulate a suggested mapping of the TfL data to OSM equivalents, where equivalent tags exist, for comments.


NB The new filtering controls have a couple of URL persistency bugs - I'll mop these up shortly. So please be aware of this if sending a link.


Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


On Fri, 10 May 2019, Martin Lucas-Smith - CycleStreets wrote:



Transport for London (TfL) have created a new database of cycling infrastructure, containing 240,000 assets, covering all of Greater London.

This groundbreaking database contains every cycle infrastructure asset within Greater London, including assets on and off-carriageway. The assets surveyed are: cycle parking; signals; signage; traffic calming measures; restricted points (e.g. steps); advanced stop lines; crossings; cycle lanes/tracks; and restricted routes (e.g. pedestrian only routes).

TfL is keen to make this available to the OpenStreetMap community under a compatible open license, to ensure maximum use of the CID. TfL is also potentially willing to consider tool development to help facilitate sensitive merging in of this data.

There is a new Wiki page, giving full details, at:
https://wiki.openstreetmap.org/wiki/TfL_Cycling_Infrastructure_Database


Demonstrator map:
-----------------

A demonstrator map, for the purposes only of evaluation by the OSM community at this stage, has been created by CycleStreets.

This demonstrator map contains only one of the 25 areas that have been surveyed.

We are specifically seeking comments on data quality and usefulness of this data from the OSM community. Initial analysis by CycleStreets is that the data is of excellent quality, and very suitable for conflation into OSM, to increase both comprehensiveness and metadata quality.

https://tflcid.cyclestreets.net/
(Use the controls on the right to change feature type.)

Usage notes: The controls on the right of the map allow the different feature types to be selected. The OSM layer (available at zoom level 19+) also provides a live feed from the OSM API, to enable quick comparisons. The two photos of each asset are in the process of being supplied; those already available and cleared in GDPR terms are included in the popup.

It is stressed that at this point, no permission is given for re-use of the data in any way, but TfL strongly intends to make this available in future. All 25 areas would be covered in the final data release, not merely the one shown currently in the demonstrator map.


Feedback is very strongly encouraged, as soon as possible. What are people's thoughts?


Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


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Re: TfL Cycling Infrastructure Database

Tom Hughes-3
Whether we want it is not really the issue.

I believe the issue is the licensing, and until that is resolved
what we may or may not want is irrelevant.

Tom

On 11/06/2019 10:11, Tony Shield wrote:

> Hi
>
> Looking at the demo I can't think of a reason why OSM would not want
> this data - I believe we do want this data.
>
> Questions I have -
>
>   * Are the tags suitable for a global database? Can and should they be
>     reused elsewhere in UK? or globally? Is there a need for specific
>     prefixed TfL tags?
>   * Are there clashes with other cycling data in London?  What is a
>     resolution strategy?
>   * Will import and integration be performed by automatic processing?
>     Usual OSM import rules? Clash detection and sanity checking?
>
> Regards
>
> Tony - TonyS999
>
> On 10/06/2019 23:13, Martin Lucas-Smith - CycleStreets wrote:
>>
>>
>> The demonstrator map showing this data from TfL now has an extensive
>> set of filters for each feature type:
>>
>> https://tflcid.cyclestreets.net/
>>
>> E.g. for cycle lane/track, you can now filter for segregated, shared,
>> prority at sideroads, full/part time, mandatory, stepped track, etc.
>>
>> These filters match the schema definition at:
>> https://tflcid.cyclestreets.net/TfL_CID_Schema.pdf
>>
>> There are also a lot more images loaded now.
>>
>> My general impression is that the data does seem very accurate. I
>> would welcome more eyes on this, and thoughts generally on the use of
>> this data in OSM. Hopefully the filtering will make this easier to
>> find various kinds of infrastructure.
>>
>> I am about to circulate a suggested mapping of the TfL data to OSM
>> equivalents, where equivalent tags exist, for comments.
>>
>>
>> NB The new filtering controls have a couple of URL persistency bugs -
>> I'll mop these up shortly. So please be aware of this if sending a link.
>>
>>
>> Martin,                     **  CycleStreets - For Cyclists, By Cyclists
>> Developer, CycleStreets     ** https://www.cyclestreets.net/
>>
>>
>> On Fri, 10 May 2019, Martin Lucas-Smith - CycleStreets wrote:
>>
>>>
>>>
>>> Transport for London (TfL) have created a new database of cycling
>>> infrastructure, containing 240,000 assets, covering all of Greater
>>> London.
>>>
>>> This groundbreaking database contains every cycle infrastructure
>>> asset within Greater London, including assets on and off-carriageway.
>>> The assets surveyed are: cycle parking; signals; signage; traffic
>>> calming measures; restricted points (e.g. steps); advanced stop
>>> lines; crossings; cycle lanes/tracks; and restricted routes (e.g.
>>> pedestrian only routes).
>>>
>>> TfL is keen to make this available to the OpenStreetMap community
>>> under a compatible open license, to ensure maximum use of the CID.
>>> TfL is also potentially willing to consider tool development to help
>>> facilitate sensitive merging in of this data.
>>>
>>> There is a new Wiki page, giving full details, at:
>>> https://wiki.openstreetmap.org/wiki/TfL_Cycling_Infrastructure_Database
>>>
>>>
>>> Demonstrator map:
>>> -----------------
>>>
>>> A demonstrator map, for the purposes only of evaluation by the OSM
>>> community at this stage, has been created by CycleStreets.
>>>
>>> This demonstrator map contains only one of the 25 areas that have
>>> been surveyed.
>>>
>>> We are specifically seeking comments on data quality and usefulness
>>> of this data from the OSM community. Initial analysis by CycleStreets
>>> is that the data is of excellent quality, and very suitable for
>>> conflation into OSM, to increase both comprehensiveness and metadata
>>> quality.
>>>
>>> https://tflcid.cyclestreets.net/
>>> (Use the controls on the right to change feature type.)
>>>
>>> Usage notes: The controls on the right of the map allow the different
>>> feature types to be selected. The OSM layer (available at zoom level
>>> 19+) also provides a live feed from the OSM API, to enable quick
>>> comparisons. The two photos of each asset are in the process of being
>>> supplied; those already available and cleared in GDPR terms are
>>> included in the popup.
>>>
>>> It is stressed that at this point, no permission is given for re-use
>>> of the data in any way, but TfL strongly intends to make this
>>> available in future. All 25 areas would be covered in the final data
>>> release, not merely the one shown currently in the demonstrator map.
>>>
>>>
>>> Feedback is very strongly encouraged, as soon as possible. What are
>>> people's thoughts?
>>>
>>>
>>> Martin,                     **  CycleStreets - For Cyclists, By Cyclists
>>> Developer, CycleStreets     ** https://www.cyclestreets.net/
>>>
>>>
>>> _______________________________________________
>>> Talk-GB mailing list
>>> [hidden email]
>>> https://lists.openstreetmap.org/listinfo/talk-gb
>>>
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--
Tom Hughes ([hidden email])
http://compton.nu/

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Re: TfL Cycling Infrastructure Database

Martin - CycleStreets
In reply to this post by TonyS


On Tue, 11 Jun 2019, Tony Shield wrote:

> Looking at the demo I can't think of a reason why OSM would not want this
> data - I believe we do want this data.
>
> Questions I have -
>
> * Are the tags suitable for a global database? Can and should they be
> reused elsewhere in UK? or globally? Is there a need for specific
> prefixed TfL tags?

I'm about to circulate a proposed mapping of TfL's attributes to OSM tags.
In some cases, there is no equivalent, e.g. signage plates/locations do not
have an equivalent in OSM). In some cases I believe there are new tags that
could be created, e.g. there are a lot of cyclehoop stands which are just
arms bolted to an existing signpost, and which there doesn't seem to be an
existing OSM tag for (surprisingly).

I certainly don't believe that OSM should be creating anything
London-specific or maintaining proprietary prefixing.


> * Are there clashes with other cycling data in London?  What is a
> resolution strategy?
>
> * Will import and integration be performed by automatic processing? Usual
> OSM import rules? Clash detection and sanity checking?

Clearly, there is overlap with existing OSM data, in that for instance, a
high proportion of the cycle/bus lanes are present, cycle parking is
sometimes present (though the TfL data seems more comprehensive to me),
etc.

TfL seem potentially interested in funding tool development, which in my
view should be of a generic nature that supports other conflation efforts.
Richard Fairhurst's new tool, and other things like the JOSM conflation
tool is amongst others I am currently looking at. I would welcome any
pointers to other tools that people would recommend or are aware of.

It seems to me that a manual conflation process, assisted by pre-processing
to weed out obvious clashes or mismatches, and with workflows optimised
towards the large volume of data here (e.g. approving several nearby cycle
parking locations in one go) would be the way forward. Again, any views
most welcome.


Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/

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Re: TfL Cycling Infrastructure Database

Martin - CycleStreets
In reply to this post by Tom Hughes-3


On Tue, 11 Jun 2019, Tom Hughes wrote:

> Whether we want it is not really the issue.
>
> I believe the issue is the licensing, and until that is resolved what we
> may or may not want is irrelevant.

I have been following up with TfL some of the licensing questions, and am
expecting very shortly to send updated information I have from TfL to the
Licensing Working Group[1]. I'm awaiting one or two further clarifications
before I send that.


[1] https://wiki.osmfoundation.org/wiki/Licensing_Working_Group



Martin,                     **  CycleStreets - For Cyclists, By Cyclists
Developer, CycleStreets     **  https://www.cyclestreets.net/


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