Bexhill and Battle: New Boundaries 2018 Calculation

Bexhill and Battle: Overview

 Projection: CON seat 

Implied MP at 2017: Huw Merriman  (CON)
County/Area: East Sussex (South East)
Electorate: 75,872
Turnout: 76.8%

 Implied 2017 VotesImplied 2017 Share
CON36,12062.0%
LAB14,54825.0%
LIB4,3637.5%
UKIP2,0193.5%
Green1,2542.2%
CON Majority21,57237.0%

See overview of other seats in South East.

Bexhill and Battle : Political and Demographic indicators

The table below shows some political and demographic numerical indicators for the new Bexhill and Battle constituency, the 'South East' 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.

IndicatorSeatSouth EastAll GB
Party WinnerCONCONCON
Economic Position5° Right4° Right
National Position8° Nat3° Nat1° Int
EU Leave %59%52%52%
British Identity25%29%29%
Good Health41%49%48%
UK Born94%88%88%
Good Education35%43%39%
Good Job51%56%51%
High SEC53%57%51%
Average Age55.349.248.5
ABC1 Class53%60%53%

Bexhill and Battle ranks #167 for "Leave", #208 for "Right" and #159 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

Bexhill and Battle: 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 Bexhill and Battle 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 Bexhill and Battle

The old seat(s) needed are:

Old seat: Bexhill and Battle

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

Old seat: Bexhill and BattleTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
RotherBattle Town4,119Bexhill and Battle1,42879482121560003,120
RotherCentral4,340Bexhill and Battle1,5121,339270107590003,287
RotherCollington3,375Bexhill and Battle1,6326909874610002,555
RotherCrowhurst2,069Bexhill and Battle97038214839290001,568
RotherDarwell4,096Bexhill and Battle1,999611222642060003,102
RotherEwhurst and Sedlescombe2,017Bexhill and Battle1,11819915722320001,528
RotherKewhurst3,640Bexhill and Battle1,879550140173160002,758
RotherOld Town3,056Bexhill and Battle1,197696236110750002,314
RotherRother Levels3,624Bexhill and Battle2,00538924285240002,745
RotherSackville3,484Bexhill and Battle1,450907161104160002,638
RotherSalehurst3,601Bexhill and Battle1,52255060714360002,729
RotherSidley4,520Bexhill and Battle1,5111,57777223350003,423
RotherSt Marks3,534Bexhill and Battle1,7867414496100002,677
RotherSt Michaels3,832Bexhill and Battle1,3441,251140150180002,903
RotherSt Stephens3,809Bexhill and Battle1,598901180179270002,885
RotherTicehurst and Etchingham3,630Kent Mid and Ticehurst2,048285199142030002,749
WealdenCross in Hand / Five Ashes1,927Bexhill and Battle1,267148117270001,460
WealdenHeathfield East1,928Bexhill and Battle1,290111357180001,461
WealdenHeathfield North and Central6,327Bexhill and Battle3,534681249422860004,792
WealdenHerstmonceux2,243Bexhill and Battle1,19428775100430001,699
WealdenNinfield and Hooe with Wartling1,933Bexhill and Battle1,200171686180001,463
WealdenPevensey and Westham7,405Bexhill and Battle3,3691,4283033681420005,610
WealdenPolegate North3Lewes and Uckfield210000003
 Total78,512 36,85514,6894,4832,0051,43700059,469

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

Old seat: Wealden

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

Old seat: WealdenTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
WealdenBuxted and Maresfield4,391Tunbridge Wells and Crowborough2,37869810222610003,261
WealdenChiddingly and East Hoathly2,608Lewes and Uckfield1,2225427961330001,937
WealdenCrowborough East4,287Tunbridge Wells and Crowborough2,101513397103690003,183
WealdenCrowborough Jarvis Brook2,136Tunbridge Wells and Crowborough71156522940410001,586
WealdenCrowborough North4,620Tunbridge Wells and Crowborough2,25195617413380003,432
WealdenCrowborough St Johns1,822Tunbridge Wells and Crowborough9922934710120001,354
WealdenCrowborough West3,985Tunbridge Wells and Crowborough1,7697881601191240002,960
WealdenDanehill / Fletching / Nutley4,309Lewes and Uckfield2,15361230375570003,200
WealdenForest Row4,200Tunbridge Wells and Crowborough1,60061133425720003,119
WealdenFramfield2,207Tunbridge Wells and Crowborough1,263297448260001,638
WealdenFrant / Withyham4,243Tunbridge Wells and Crowborough1,966777121672200003,151
WealdenHailsham Central and North4,518Lewes and Uckfield1,779553869124310003,356
WealdenHailsham East2,320Lewes and Uckfield1,13438013555190001,723
WealdenHailsham South and West6,820Lewes and Uckfield2,7711,425251584330005,064
WealdenHartfield2,131Tunbridge Wells and Crowborough1,0781872799300001,583
WealdenHellingly4,832Lewes and Uckfield1,92265786398490003,589
WealdenHoram2,139Bexhill and Battle1,3151457928200001,587
WealdenMayfield2,079Tunbridge Wells and Crowborough1,099318812440001,544
WealdenRotherfield1,936Tunbridge Wells and Crowborough1,175158669290001,437
WealdenUckfield Central2,401Lewes and Uckfield1,02937634322130001,783
WealdenUckfield New Town2,233Lewes and Uckfield794360290821330001,659
WealdenUckfield North4,432Lewes and Uckfield1,3931,004716133460003,292
WealdenUckfield Ridgewood2,581Lewes and Uckfield1,10352719165300001,916
WealdenWadhurst4,195Tunbridge Wells and Crowborough2,030661129702270003,117
 Total81,425 37,02813,4036,2821,8011,95700060,471

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

New seat: Bexhill and Battle

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

New seat: Bexhill and Battle
DistrictWardElectorate
2017
Old Seat CON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
RotherBattle Town3,912Bexhill and Battle1,42879482121560003,120
RotherCentral3,872Bexhill and Battle1,5121,339270107590003,287
RotherCollington3,679Bexhill and Battle1,6326909874610002,555
RotherCrowhurst2,024Bexhill and Battle97038214839290001,568
RotherDarwell3,920Bexhill and Battle1,999611222642060003,102
RotherEwhurst and Sedlescombe2,036Bexhill and Battle1,11819915722320001,528
RotherKewhurst3,884Bexhill and Battle1,879550140173160002,758
RotherOld Town2,984Bexhill and Battle1,197696236110750002,314
RotherRother Levels3,752Bexhill and Battle2,00538924285240002,745
RotherSackville3,653Bexhill and Battle1,450907161104160002,638
RotherSalehurst3,417Bexhill and Battle1,52255060714360002,729
RotherSidley3,937Bexhill and Battle1,5111,57777223350003,423
RotherSt Marks3,779Bexhill and Battle1,7867414496100002,677
RotherSt Michaels3,707Bexhill and Battle1,3441,251140150180002,903
RotherSt Stephens3,693Bexhill and Battle1,598901180179270002,885
WealdenCross in Hand / Five Ashes1,975Bexhill and Battle1,267148117270001,460
WealdenHeathfield East1,933Bexhill and Battle1,290111357180001,461
WealdenHeathfield North and Central6,091Bexhill and Battle3,534681249422860004,792
WealdenHerstmonceux2,209Bexhill and Battle1,19428775100430001,699
WealdenHoram2,064Wealden1,3151457928200001,587
WealdenNinfield and Hooe with Wartling1,914Bexhill and Battle1,200171686180001,463
WealdenPevensey and Westham7,437Bexhill and Battle3,3691,4283033681420005,610
 Total75,872 36,12014,5484,3632,0191,25400058,304

And these are the implied results for 2017 for the new seat of Bexhill and Battle.


© 2017 Martin Baxter
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