The outcomes of traffic modelling exercises for the Cycle Enfield (Mini-Holland) proposals

Steve Rowe made this Freedom of Information request to Transport for London

This request has been closed to new correspondence from the public body. Contact us if you think it ought be re-opened.

The request was successful.

Dear Transport for London,

Please provide me with the following information:

1. the latest findings from TfL's traffic modelling audit process (MAP) for the A105, Enfield Town and Southbury Rd schemes; and

2. details of which of the following modelling methods, VISSIM, LinSig and TRANSYS have been applied to which parts of the A105, Enfield Town and Southbury Road schemes;

3. TfL's policy on whether and if a proposed scheme can be implemented before a modelling audit has been completed.

Yours faithfully,

Steve Rowe

FOI, Transport for London

Dear Mr Rowe

 

Our Ref:         FOI-1121-1617 / FOI-1122-1617 / FOI-1130-1617 /
FOI-1131-1617

 

Thank you for your e-mails received on 9 September 2016 asking for
information about the Enfield Mini-Holland Scheme.

 

Your request will be processed in accordance with the requirements of the
Environmental Information Regulations and TfL’s information access
policy. 

 

A response will be provided to you by 10 October 2016. 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.

 

In the meantime, if you would like to discuss this matter further, please
feel free to contact me.

 

Yours sincerely

 

Gemma Jacob

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

 

[2][TfL request email]

 

 

FOI-1121-1617

show quoted sections

Dear Transport for London,
Your Ref: FOI-1121-1617 / FOI-1122-1617 / FOI-1130-1617 /
FOI-1131-1617
I made a request for information about the outcomes from traffic modelling exercises for the Cycle Enfield (Mini Holland) proposals. It was sent to you on September 9th. The reference number you gave me for this request is noted above.

I am extremely disappointed that you have not provided me with the information I requested by the expected date. By law, your organisation should have responded promptly. The information I requested is not likely to have been difficult to find since it relates to the pre-planning carried out by by Enfield Council before finalising their cycle lane proposals. As the Council has decided to press ahead with its plans, we must suppose that this is in the light of the reports it received from the various traffic modelling exercises. The information, therefore, should already exist and not need to be researched or collated.

I would like to know when you expect to be able to provide me with this information. I will be copying this request to the relevant FOI authorities.

Yours faithfully,

Steve Rowe

FOI, Transport for London

1 Attachment

Dear Mr Rowe

 

Our Ref:         FOI-1121-1617 / FOI-1122-1617 / FOI-1130-1617 /
FOI-1131-1617

 

Thank you for your e-mails received on 9 September 2016 asking for
information about the Enfield Mini-Holland Scheme.

 

Your request has been considered in accordance with the requirements of
the Environmental Information Regulations (EIR) and TfL’s information
access policy. 

 

Unfortunately, due to an error the incorrect received date was entered on
our system when your requests were logged and a response date of 10
October 2016 was recorded. I apologise for this error as an e-mail should
have been sent to you last week explaining that because of the complexity
of your requests, we will be unable to resolve your request within the
initial statutory 20 working day deadline. This is because there is a
large volume of data that we are having to review and consider for
disclosure.

 

To enable us to fully consider your request, in accordance with the EIRs
we have had to extend the deadline for providing a response to 40 working
days from the date we received your request. The amended date for a final
response is now 4 November 2016, however I expect we will be able to
provide a response in the next week or so.

 

I apologise for the delay and any inconvenience this may cause you. If you
have any queries or would like to discuss your request, please feel free
to contact me.   

 

If you are not satisfied with this response, please read the attached
help-sheet entitled ‘Your Right to Appeal.’

 

Yours sincerely

 

Gemma Jacob

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

 

[1][TfL request email]

 

 

FOI-1121-1617

show quoted sections

FOI, Transport for London

2 Attachments

Dear Mr Rowe

 

Our Ref:         FOI-1122-1617 / FOI-1130-1617 / FOI-1131-1617

 

Thank you for your e-mails received on 9 and 12 September 2016 asking for
information about the Enfield Mini-Holland Scheme.

 

Your request has been considered in accordance with the requirements of
the Environmental Information Regulations and our information access
policy. I can confirm we hold some of the information you require. You
asked for:

 

FOI-1122-1617

1.    The latest findings from TfL's traffic modelling audit process (MAP)
for the A105, Enfield Town and Southbury Rd schemes; and

2.    Details of which of the following modelling methods, VISSIM, LinSig
and TRANSYS have been applied to which parts of the A105, Enfield Town and
Southbury Road schemes;

3.    TfL's policy on whether and if a proposed scheme can be implemented
before a modelling audit has been completed.

 

FOI-1130-1617

Please provide me with details of:

a)    The latest findings from your traffic modelling exercises on the
impact of Enfield Mini Holland cycle lane proposals on journey times of
the 329 bus route between Palmers Green and Enfield Town (both
directions).

It is possible that several different modelling systems have been used
over time (LinSig, VISSIM etc.) and that findings have changed over time,
depending on the models used. Therefore please provide also:

b)    Details of all modelling results for the 329 bus route from February
2016 onwards, stating the modelling system used

 

FOI-1131-1617

Please provide me with the latest findings about the traffic flow impact
from TfL's model audit process (MAP) for the following 3 elements of
Enfield's Mini Holland proposals:

a)    the A105 scheme

b)    the Enfield Town scheme and

c)    the Southbury Rd scheme

Please provide me also with details of TfL's policy on whether a scheme
can be implemented before a full model audit process has been completed.

 

Please find attached all the modelling information which has been assessed
by us for the A105 scheme. The documents which are included are:

·         Base model Technical Notes produced by Jacobs (LB Enfield’s
consultants)

·         TfL Base Model LMAP check sheets

·         Proposed model Technical Notes produced by Jacobs

·         TfL Proposed Model LMAP check sheets

·         Bus Journey Time assessment produced by Jacobs

·         General Traffic Journey Time assessment produced by Jacobs

The base and proposed modelling for the A105 has been provided by the
London Borough of Enfield which we have now validated and audited. This
modelling assessment was carried out using the LinSig modelling software
package.

 

The Enfield Town and Southbury Road (A110) corridor proposed modelling is
not due to be received by us until 2017/2018 as these schemes are at the
end of Enfield’s Mini-Holland Programme.

 

We will review all traffic model proposals that could impact on the
Transport for London Route Network (TLRN). This review is called the
Modelling Audit Process (MAP), the audit is technical in nature and is
carried out by specially trained staff using bespoke computer software, to
make sure the models meet our guidelines. A proposed scheme cannot be
implemented before this Modelling Audit Process (MAP) has been completed.

 

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

 

Please see the attached information sheet for details of your right to
appeal as well as information on copyright and what to do if you would
like to re-use any of the information we have disclosed.

 

Yours sincerely

 

Gemma Jacob

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

[1][TfL request email]

 

 

FOI-1122-1617

show quoted sections