Traffic changes resulting from Hammersmith Bridge changes

The request was successful.

Dear Transport for London,

I'd like to see some data showing the changes in traffic behaviour since the closure of Hammersmith Bridge to motor traffic.

In particular I'm interested in the changes on the A205 between (roughly) Kew Bridge and Putney Bridge, and the A316 between Richmond and Hogarth Lane.

I don't know exactly what data sets are easily available to your team, but I'm interested in:
- Do we know how traffic volumes have changes on these main roads?
- Do we know if traffic speeds have generally changed on these roads?
- What changes can be observed in the bus services whose routes haven't changed?

I apologise in advance that this is perhaps slightly vague, but I'm happy to provide further info, or discuss what might be available, if that would help.

Yours faithfully,

Tim Lennon.

FOI, Transport for London

Dear Tim Lennon

 

Our ref: FOI-1103-1920/GH

 

Thank you for your request received by Transport for London (TfL) on 12
July 2019 asking for information about traffic changes resulting from
Hammersmith Bridge changes.

 

Your request will be processed in accordance with the requirements of the
Freedom of Information Act and our information access policy.

 

A response will be sent to you by 9 August 2019. We publish a substantial
range of information on our website on subjects including operational
performance, contracts, expenditure, journey data, governance and our
financial performance. This includes data which is frequently asked for in
FOI requests or other public queries. Please check
[1]http://www.tfl.gov.uk/corporate/transpar... to see if this helps you.

 

We will publish anonymised versions of requests and responses on the
[2]www.tfl.gov.uk website. We will not publish your name and we will send
a copy of the response to you before it is published on our website.

 

In the meantime, if you would like to discuss this matter further, please
do not hesitate to contact me.

 

Yours sincerely

 

Graham Hurt

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

 

 

show quoted sections

 

References

Visible links
1. http://www.tfl.gov.uk/corporate/transpar...
2. http://www.tfl.gov.uk/
3. http://www.tfl.gov.uk/corporate/about-tfl/

FOI, Transport for London

2 Attachments

Dear Tim Lennon

 

Our ref: FOI-1103-1920/GH

 

Thank you for your request received by Transport for London (TfL) on 12
July 2019 asking for information about traffic changes resulting from
Hammersmith Bridge changes.

 

Your request has been considered under the requirements of the
Environmental Information Regulations and our information access policy. I
can confirm that we do hold some of the information you require.

 

Please find attached a document which provides the data you have requested
on traffic flow and journey times since Hammersmith Bridge has closed,
compared to the period before the bridge was closed. This covers the key
routes that we are monitoring in your area of interest.

 

On slide one of the attached document, the (+) boxes show increases to the
number of vehicles and the (-) boxes show decreases. Slide two has
information on changes to journey times.  The data on slides one and two
does not include cycles. Slide 3 has information on bus journey times and
slide 4 explains more on how we collect data.

 

Signal timing changes have been made on a regional basis – to make sure
that timing changes in one location do not have unintended consequences
elsewhere.

 

One of the most challenging locations has been Chalkers Corner where the
A316 meets the A205 Upper Richmond Road, and A3003 Lower Richmond Road. We
are using the traffic signals to hold traffic at the top of the A3 at
Robin Hood Roundabout to help us manage areas that are at risk of
excessive congestion by restricting the flow towards them, although at
present traffic levels are lower due to the school holiday period.

 

Also, we have made changes to signal timings to assist traffic in
congested areas – for example traffic that has been diverted towards
Chiswick Bridge and Putney Bridges, as well as Hogarth Roundabout, to
manage the traffic south towards Chiswick bridge, the signals along Fulham
Palace Road and Hammersmith Gyratory; which is currently under review from
our traffic signals team.

 

We continue to keep the whole area under review, and will respond wherever
possible to any emerging traffic conditions which are resulting in
excessive congestion or causing serious delays to buses.

 

If this is not the information you are looking for, or if you are unable
to access it for some reason, please do not hesitate to contact me.

 

If you are not satisfied with this response please see the attached
information sheet for details of your right to appeal.

 

Yours sincerely

 

Graham Hurt

 

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

 

show quoted sections

 

References

Visible links
1. http://www.tfl.gov.uk/corporate/about-tfl/