Burnley: New Boundaries 2018 Calculation

Burnley: Overview

 Projection: LAB seat 

Implied MP at 2017: Julie Cooper  (LAB)
County/Area: Lancashire (North West)
Electorate: 75,569
Turnout: 68.0%

 Implied 2017 VotesImplied 2017 Share
LAB26,49651.6%
CON16,86232.8%
LIB5,22310.2%
UKIP1,9273.7%
MIN4810.9%
Green4080.8%
LAB Majority9,63418.7%

See overview of other seats in North West.

Burnley : Political and Demographic indicators

The table below shows some political and demographic numerical indicators for the new Burnley constituency, the 'North West' area and nation.

The political measures include the Left/Right and International/National axes (what does this mean).

The demographic measures are from the 2011 Census and include categories relating to national identity, economic activity, health and education. These categories are those which have the most relevance to political attitudes.

IndicatorSeatNorth WestAll GB
Party WinnerLABLABCON
Economic Position6° Left6° Left
National Position7° Nat2° Nat1° Int
EU Leave %65%54%52%
British Identity30%28%29%
Good Health41%46%48%
UK Born82%92%88%
Good Education25%37%39%
Good Job38%49%51%
High SEC33%48%51%
Average Age47.548.648.5
ABC1 Class35%50%53%

Burnley ranks #56 for "Leave", #436 for "Right" and #204 for "National" out of 600 new seats.

Indicators: Legend and Descriptions

Indicators : Legend and Descriptions

The colour scheme used in the table above is explained in the legend table below. The eight census indicators (British Identity, Good Health, UK Born, Good Education, Good Job, High SEC, Average Age and AB1 Class) all use the same 'Census' colour scheme indicating whether the area's level is above or below the national average.

TopicCat 1Cat 2Cat 3Cat 4Cat 5
Economic PositionVery LeftLeftCentristRightVery Right
National PositionVery IntInternationalCentristNationalVery Nat
EU Leave %Very RemainRemainBalancedLeaveVery Leave
CensusVery LowLowMediumHighVery High

Indicator definitions are given in terms of political data definitions or census categories:

IndicatorCensus
Question
Definition / Included Census Categories
Party WinnerArea party winner : actual election result or projected by Electoral Calculus
Economic PositionEconomic position between 100° Left and 100° Right, estimated by Electoral Calculus from political and demographic data.
National PositionNational position between 100° International and 100° National, estimated by Electoral Calculus from political and demographic data.
EU Leave %EU Referendum vote share for 'Leave' : actual result or estimate
British IdentityNational Identity (KS202)Those answering British, British-Other, or Scottish-British
Good HealthHealth (KS301)Those answering 'Very Good Health'
UK BornCountry of Birth (QS203)Those answering England, Northern Ireland, Scotland, Wales, GB Other, or UK Other
Good EducationHighest level of Qualification (QS501)Level 3 (A-level equivalent) or Level 4+ (degree equivalent)
Good JobOccupation (QS606)Occupation codes 1xx to 4xx (Managers, Professionals, Associates, and office workers)
High SECNS-SeC of Household Reference Person (QS609)National Statistics Socio-economic Classification from 1 to 4 (higher managers and professionals, lower managers and professionals, intermediate occupations, small employers and self-employed).
Average AgeAge (QS103)Average age of adults (18 years and above)
ABC1 ClassApproximated Social Grade (QS611)Approximated social grades A, B and C1

Burnley: Map

Boundary Lines courtesy of Ordnance Survey OpenData © Crown copyright 2015

Introduction

This page shows the detail of the calculations performed to estimate the general election result for 2017 had the new boundaries for Burnley 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.

List of old seats forming part of Burnley

The old seat(s) needed are:

Old seat: Burnley

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

Old seat: BurnleyTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
BurnleyBank Hall4,360Burnley5751,514411188280002,716
BurnleyBriercliffe4,312Burnley1,032880520209450002,686
BurnleyBrunshaw4,745Burnley8481,457364271140002,954
BurnleyCliviger with Worsthorne3,799Burnley1,254639317139160002,365
BurnleyCoal Clough with Deerplay3,730Burnley785875468178160002,322
BurnleyDaneshouse with Stoneyholme4,419Burnley1832,278279650002,751
BurnleyGannow4,187Burnley7531,13552696970002,607
BurnleyGawthorpe4,535Accrington8371,511359103130002,823
BurnleyHapton with Park4,389Accrington9471,193333196640002,733
BurnleyLanehead4,279Burnley8151,28036619390002,663
BurnleyQueensgate4,223Burnley7011,37449039250002,629
BurnleyRosegrove with Lowerhouse4,917Accrington9781,396397246440003,061
BurnleyRosehill with Burnley Wood4,316Burnley8031,142466204710002,686
BurnleyTrinity4,009Burnley5911,314362219100002,496
BurnleyWhittlefield with Ightenhill4,494Burnley1,37784438818540002,798
 Total64,714 12,47918,8326,0462,47246100040,290

The full details of these calculations are given on the Burnley seat details page. Click on "Show workings".

Old seat: Pendle

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

Old seat: PendleTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
PendleBarrowford3,692Pendle and Ribble Valley1,5978933201701002,549
PendleBlacko and Higherford1,282Pendle and Ribble Valley666209700030885
PendleBoulsworth3,799Pendle and Ribble Valley1,771753690220902,624
PendleBradley4,731Burnley9062,246540905203,267
PendleBrierfield3,444Burnley9221,40770603702,379
PendleClover Hill3,991Burnley1,0521,6202602703102,756
PendleCoates3,988Pendle and Ribble Valley1,528980136010001002,754
PendleCraven4,006Pendle and Ribble Valley1,5869981190590502,767
PendleEarby4,508Pendle and Ribble Valley1,8681,17257070803,112
PendleFoulridge1,245Pendle and Ribble Valley670185003020860
PendleHigham and Pendleside1,195Pendle and Ribble Valley633184103050826
PendleHorsfield3,707Pendle and Ribble Valley1,3581,025840830902,559
PendleMarsden2,577Burnley7907573907018701,780
PendleOld Laund Booth1,043Pendle and Ribble Valley4991912702020721
PendleReedley3,883Burnley1,2331,368110906002,681
PendleSouthfield4,370Burnley1,2261,718290603803,017
PendleVivary Bridge4,186Pendle and Ribble Valley1,5241,1276909707502,892
PendleWalverden2,789Burnley5931,235640403001,926
PendleWaterside3,749Pendle and Ribble Valley1,1421,2297604209902,588
PendleWhitefield2,778Burnley4231,413360004601,918
 Total64,963 21,98720,71094305030718044,861

The full details of these calculations are given on the Pendle seat details page. Click on "Show workings".

New seat: Burnley

The new seat of Burnley is made up of the following wards, with the transfer-adjusted votes shown.

New seat: Burnley
DistrictWardElectorate
2017
Old Seat CON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
BurnleyBank Hall3,971Burnley5751,514411188280002,716
BurnleyBriercliffe4,337Burnley1,032880520209450002,686
BurnleyBrunshaw4,669Burnley8481,457364271140002,954
BurnleyCliviger with Worsthorne4,209Burnley1,254639317139160002,365
BurnleyCoal Clough with Deerplay3,892Burnley785875468178160002,322
BurnleyDaneshouse with Stoneyholme3,685Burnley1832,278279650002,751
BurnleyGannow4,150Burnley7531,13552696970002,607
BurnleyLanehead4,416Burnley8151,28036619390002,663
BurnleyQueensgate3,887Burnley7011,37449039250002,629
BurnleyRosehill with Burnley Wood4,293Burnley8031,142466204710002,686
BurnleyTrinity3,682Burnley5911,314362219100002,496
BurnleyWhittlefield with Ightenhill4,675Burnley1,37784438818540002,798
PendleBradley4,022Pendle9062,246540905203,267
PendleBrierfield3,486Pendle9221,40770603702,379
PendleClover Hill3,336Pendle1,0521,6202602703102,756
PendleMarsden2,386Pendle7907573907018701,780
PendleReedley4,178Pendle1,2331,368110906002,681
PendleSouthfield3,468Pendle1,2261,718290603803,017
PendleWalverden2,485Pendle5931,235640403001,926
PendleWhitefield2,342Pendle4231,413360004601,918
 Total75,569 16,86226,4965,2231,9274080481051,397

And these are the implied results for 2017 for the new seat of Burnley.


© 2017 Martin Baxter
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