Shoreditch and Bethnal Green: New Boundaries 2018 Calculation

Shoreditch and Bethnal Green: Overview

Projection: LAB seat

Implied MP at 2017:Unknown (new seat)  (LAB)
County/Area:Hackney (London)
Electorate:88,688
Turnout:68.5%

PartyImplied 2017 VotesImplied 2017 Share
LAB45,18874.4%
CON7,21211.9%
LIB3,6556.0%
MIN1,9833.3%
Green1,7802.9%
UKIP4930.8%
OTH4060.7%
LAB Majority37,97662.5%

See overview of other seats in London.



Introduction

This page shows the detail of the calculations performed to estimate the general election result for 2017 had the new boundaries for Shoreditch and Bethnal Green been in force at that time. The basic idea of the calculation is to look at the district council wards which make up the new seat, and estimate how they voted in 2017. This estimate is based on the recent local election results in those wards, with adjustments made to allow for different turnouts and different voting patterns for local and general elections.

In many cases, wards are divided between several old constituencies or between new constituencies. So the same ward may be shown more than once, but the electorate shown will reflect that ward sub-section.

Election results from a recent local election are given. This is usually the local election closest to 2015 from the period 2012-2015. For multiple-member wards, the votes shown are the sum of the votes cast for all candidates of each party. A negative number indicates candidate(s) elected unopposed.

Calculation method

There are two problems with using the raw (actual) local election results to imply general election results ward-by-ward. Firstly, turnout can be different between local and general elections, which means that the total number of local votes cast does not equal the number of votes cast in each old seat at the general election. To correct for this, we adjust the local votes to match the general election turnout. Each ward's result is scaled, whilst keeping constant the percentage support for each party, so that the total turnout adds up to the old seat's general election turnout. All wards in the old seat are assumed to have the same percentage turnout.

Secondly, even though we now have the correct number of votes in the old seat, the party totals will not match the general election result. Some parties do better at the local election than the general election, and others do vice versa. We call these strong and weak parties respectively. The next step is to transfer votes from strong parties to weak parties. This is done by taking votes proportionally away from strong parties and putting them in a transfer pool. For instance if a party got 12,500 local votes, but only 10,000 general election votes, it will lose 20% over all the wards. These votes in each ward will be put in the ward's transfer pool and allocated to the weak parties. Weak parties will get votes transferred to them in proportion to the votes they need over the old seat. For instance, if two weak parties need 4,000 and 1,000 votes respectively, the first party will get 80% of each ward's transfer pool and the second party will get 20% of each ward's transfer pool. The transfer of votes between parties is done using the Electoral Calculus Transition Model.

More details of the calculation formulas are available.

Shoreditch and Bethnal Green: Map

Boundary Lines courtesy of Ordnance Survey OpenData © Crown copyright 2015, Map © OpenStreetMap contributors

List of old seats forming part of Shoreditch and Bethnal Green

The old seat(s) needed are:

Old seat: Bethnal Green and Bow

The table shows the transfer-adjusted results for each ward in the old seat of Bethnal Green and Bow, as well as showing which new seat each ward is in.

Old seat: Bethnal Green and BowTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
Tower HamletsBethnal Green11,043Shoreditch and Bethnal Green1,0566,888511184255060509,499
Tower HamletsBow East10,427Stepney and Bow1,1764,90531680170040007,047
Tower HamletsBow West7,850Stepney and Bow1,0154,29533268156033806,204
Tower HamletsSpitalfields and Banglatown6,792Shoreditch and Bethnal Green7644,34831944162041306,050
Tower HamletsSt Dunstan's7,336Stepney and Bow6083,91520195111037105,301
Tower HamletsSt Peter's10,598Shoreditch and Bethnal Green8906,407532138244055508,766
Tower HamletsStepney Green7,232Stepney and Bow5584,224206107122042605,643
Tower HamletsWeavers7,443Shoreditch and Bethnal Green6994,346299127168041006,049
Tower HamletsWhitechapel6,537Stepney and Bow8113,64026649127037105,264
 Total75,258 7,57742,9682,9828921,51503,889059,823

The full details of these calculations are given on the Bethnal Green and Bow seat details page. Click on "Show workings".

Old seat: Hackney North and Stoke Newington

The table shows the transfer-adjusted results for each ward in the old seat of Hackney North and Stoke Newington, as well as showing which new seat each ward is in.

Old seat: Hackney North and Stoke NewingtonTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
HackneyBrownswood5,233Finsbury Park and Stoke Newington4842,605279018300583,609
HackneyCazenove7,737Hackney6124,654744028700266,323
HackneyClissold8,255Finsbury Park and Stoke Newington5294,414501030800335,785
HackneyDalston5,215Shoreditch and Bethnal Green3202,571264017700313,363
HackneyHackney Central36Hackney22010100024
HackneyHackney Downs8,078Hackney4484,561409027800585,754
HackneyLea Bridge7,857Hackney5774,547298028500945,801
HackneyLondon Fields837Shoreditch and Bethnal Green61454390300012596
HackneyShacklewell5,290Hackney2783,120221018900333,841
HackneySpringfield7,686Hackney1,6464,808263022200236,962
HackneyStamford Hill West5,114Finsbury Park and Stoke Newington1,1033,033208017100144,529
HackneyStoke Newington8,967Finsbury Park and Stoke Newington5584,619438032100786,014
HackneyWoodberry Down5,378Finsbury Park and Stoke Newington5072,858152015500243,696
 Total75,683 7,12542,2643,81702,6070048456,297

The full details of these calculations are given on the Hackney North and Stoke Newington seat details page. Click on "Show workings".

Old seat: Hackney South and Shoreditch

The table shows the transfer-adjusted results for each ward in the old seat of Hackney South and Shoreditch, as well as showing which new seat each ward is in.

Old seat: Hackney South and ShoreditchTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
HackneyDe Beauvoir5,668Shoreditch and Bethnal Green6722,869293011200373,983
HackneyHackney Central8,010Hackney4654,811319016500375,797
HackneyHackney Wick7,443Hackney6004,460301014000345,535
HackneyHaggerston7,821Shoreditch and Bethnal Green6414,795295016400925,987
HackneyHomerton7,498Hackney4094,540286014000865,461
HackneyHoxton East and Shoreditch6,205Shoreditch and Bethnal Green8464,138380015400815,599
HackneyHoxton West6,951Shoreditch and Bethnal Green7224,473385016300695,812
HackneyKing's Park7,906Hackney5214,980226015700875,971
HackneyLea Bridge508Hackney4030720011004382
HackneyLondon Fields6,876Shoreditch and Bethnal Green5413,899338015100845,013
HackneyVictoria7,775Hackney5874,704324016400375,816
 Total72,661 6,04443,9763,16701,5210064855,356

The full details of these calculations are given on the Hackney South and Shoreditch seat details page. Click on "Show workings".

New seat: Shoreditch and Bethnal Green

The new seat of Shoreditch and Bethnal Green is made up of the following wards, with the transfer-adjusted votes shown.

New seat: Shoreditch and Bethnal Green
DistrictWardElectorate
2017
Old Seat CON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
HackneyDalston5,014Hackney North and Stoke Newington3202,571264017700313,363
HackneyDe Beauvoir5,900Hackney South and Shoreditch6722,869293011200373,983
HackneyHaggerston8,868Hackney South and Shoreditch6414,795295016400925,987
HackneyHoxton East and Shoreditch8,295Hackney South and Shoreditch8464,138380015400815,599
HackneyHoxton West8,610Hackney South and Shoreditch7224,473385016300695,812
HackneyLondon Fields889Hackney North and Stoke Newington61454390300012596
HackneyLondon Fields7,425Hackney South and Shoreditch5413,899338015100845,013
Tower HamletsBethnal Green13,666Bethnal Green and Bow1,0566,888511184255060509,499
Tower HamletsSpitalfields and Banglatown8,705Bethnal Green and Bow7644,34831944162041306,050
Tower HamletsSt Peter's12,613Bethnal Green and Bow8906,407532138244055508,766
Tower HamletsWeavers8,703Bethnal Green and Bow6994,346299127168041006,049
 Total88,688 7,21245,1883,6554931,78001,98340660,717

And these are the implied results for 2017 for the new seat of Shoreditch and Bethnal Green. Please note that the wards used are those of 2015 in order to be consistent with those used by the Boundary Commissions.


© 2024 Electoral Calculus Ltd
Powered by TigerLib (14-Mar-2024 12:19, Py3L, sc2957)