Lancashire North: New Boundaries 2018 Calculation

Lancashire North: Overview

Projection: CON seat

Implied MP at 2017:Ben Wallace  (CON)
County/Area:Lancashire (North West)
Electorate:74,264
Turnout:70.4%

PartyImplied 2017 VotesImplied 2017 Share
CON32,43562.0%
LAB17,18132.8%
LIB1,7443.3%
Green8251.6%
UKIP1330.3%
CON Majority15,25429.2%

See overview of other seats in North West.



Introduction

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

Lancashire North: Map

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

List of old seats forming part of Lancashire North

The old seat(s) needed are:

Old seat: Lancaster and Fleetwood

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

Old seat: Lancaster and FleetwoodTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
LancasterBulk4,592Lancaster and Morecambe1,1382,49712101120003,868
LancasterCastle3,455Lancaster and Morecambe8761,5211250870002,609
LancasterEllel3,276Lancashire North1,4241,207330540002,718
LancasterJohn O'Gaunt4,796Lancaster and Morecambe1,2932,2731650960003,827
LancasterLower Lune Valley3,525Lancashire North1,274952890400002,355
LancasterMarsh3,276Lancaster and Morecambe7841,494980730002,449
LancasterScotforth East3,221Lancaster and Morecambe8971,2511080450002,301
LancasterScotforth West4,868Lancaster and Morecambe1,4722,33316001080004,073
LancasterUniversity and Scotforth Rural2,065Lancashire North1,2341,3371030520002,726
WyreMount3,596Blackpool North and Fleetwood9141,544270170002,502
WyrePark3,259Blackpool North and Fleetwood9721,661230180002,674
WyrePharos3,166Blackpool North and Fleetwood9031,813320250002,773
WyrePilling1,907Lancashire North7604466060001,218
WyrePreesall4,615Lancashire North1,7551,225190180003,017
WyreRossall4,260Blackpool North and Fleetwood1,3631,951260230003,363
WyreWarren3,320Blackpool North and Fleetwood9531,460300170002,460
WyreWyresdale1,592Lancashire North6703787070001,062
 Total58,789 18,68225,3431,172079800045,995

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

Old seat: Morecambe and Lunesdale

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

Old seat: Morecambe and LunesdaleTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
LancasterBare5,392Lancaster and Morecambe1,8261,288208140490003,511
LancasterBolton and Slyne5,814Lancaster and Morecambe2,4891,04916962400003,809
LancasterCarnforth and Millhead4,446Lancashire North1,6991,27210753330003,164
LancasterHalton-with-Aughton1,947Lancashire North6694374619180001,189
LancasterHarbour4,759Lancaster and Morecambe1,5432,201108150500004,052
LancasterHeysham Central3,268Lancaster and Morecambe1,0201,1986545130002,341
LancasterHeysham North3,058Lancaster and Morecambe9741,3007998330002,484
LancasterHeysham South4,790Lancaster and Morecambe1,6691,47095127140003,375
LancasterKellet1,639Lancashire North7922602314100001,099
LancasterOverton1,672Lancaster and Morecambe7094203423130001,199
LancasterPoulton3,255Lancaster and Morecambe1,2071,43687117390002,886
LancasterSilverdale1,616Lancashire North554281991314000961
LancasterSkerton East4,520Lancaster and Morecambe1,1672,04412762400003,440
LancasterSkerton West4,879Lancaster and Morecambe1,2892,059135130390003,652
LancasterTorrisholme3,535Lancaster and Morecambe1,119900150103300002,302
LancasterUpper Lune Valley1,878Lancashire North8972892415110001,236
LancasterWarton1,604Lancashire North6723333016120001,063
LancasterWestgate5,211Lancaster and Morecambe1,4782,137112146210003,894
 Total63,283 21,77320,3741,6981,33347900045,657

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

Old seat: Preston

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

Old seat: PrestonTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
PrestonAshton2,993Preston6578909443190001,703
PrestonBrookfield5,003Preston7211,74862152250002,708
PrestonDeepdale3,595Preston3181,9114336230002,331
PrestonFishwick3,260Preston4271,650344380002,162
PrestonIngol5,038Preston8331,559209160110002,772
PrestonLarches5,410Preston8711,63520276270002,811
PrestonMoor Park2,830Preston4491,2886098280001,923
PrestonPreston Rural East192Lancashire North6447330000117
PrestonRibbleton5,337Preston7072,25260182300003,231
PrestonRiversway3,738Preston6221,48774112330002,328
PrestonSt George's3,171Preston3262,1437549240002,617
PrestonSt Matthew's4,285Preston5262,33358146110003,074
PrestonTown Centre4,749Preston6762,4298258470003,292
PrestonTulketh4,593Preston8821,66880154330002,817
PrestonUniversity1,891Preston4101,1707037320001,719
 Total56,085 8,48924,2101,2061,34935100035,605

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

Old seat: Ribble Valley

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

Old seat: Ribble ValleyTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
Ribble ValleyAighton, Bailey and Chaigley1,134Lancashire North707254260220001,009
Ribble ValleyAlston and Hothersall2,070Lancashire North994412590320001,497
Ribble ValleyBillington and Old Langho2,414Pendle and Ribble Valley1,224464680400001,796
Ribble ValleyBowland, Newton and Slaidburn1,074Lancashire North60314922016000790
Ribble ValleyChatburn1,063Lancashire North49820725015000745
Ribble ValleyChipping1,111Lancashire North52519224015000756
Ribble ValleyClayton-le-Dale with Ramsgreave2,082Pendle and Ribble Valley1,108332610330001,534
Ribble ValleyDerby and Thornley2,394Lancashire North964630700380001,702
Ribble ValleyDilworth1,986Lancashire North882507600320001,481
Ribble ValleyEdisford and Low Moor2,358Pendle and Ribble Valley6446772080410001,570
Ribble ValleyGisburn, Rimington1,083Lancashire North53322728017000805
Ribble ValleyLangho1,890Pendle and Ribble Valley805376510280001,260
Ribble ValleyLittlemoor2,371Pendle and Ribble Valley7097202360440001,709
Ribble ValleyMellor2,228Pendle and Ribble Valley1,147333630350001,578
Ribble ValleyPrimrose2,501Pendle and Ribble Valley7147212580460001,739
Ribble ValleyRead and Simonstone2,080Pendle and Ribble Valley1,035340580320001,465
Ribble ValleyRibchester1,265Lancashire North60823038021000897
Ribble ValleySabden1,192Pendle and Ribble Valley43132738019000815
Ribble ValleySalthill2,308Pendle and Ribble Valley9245522310460001,753
Ribble ValleySt Mary's2,274Pendle and Ribble Valley8605202120400001,632
Ribble ValleyWaddington and West Bradford2,527Lancashire North1,208345640350001,652
Ribble ValleyWhalley3,078Pendle and Ribble Valley1,593499970500002,239
Ribble ValleyWilpshire2,077Pendle and Ribble Valley1,044340540300001,468
Ribble ValleyWiswell and Pendleton1,244Pendle and Ribble Valley48521527015000742
South RibbleBamber Bridge East3,184Ribble South1,1401,3371100560002,643
South RibbleBamber Bridge West3,006Ribble South1,0701,2421090570002,478
South RibbleCoupe Green and Gregson Lane3,449Pendle and Ribble Valley1,57666210601330002,477
South RibbleFarington East2,483Ribble South7807391590370001,715
South RibbleFarington West2,844Ribble South1,1607921880470002,187
South RibbleLostock Hall4,913Ribble South1,9181,6471810850003,831
South RibbleNew Longton and Hutton East237Ribble South107411108000167
South RibbleSamlesbury and Walton3,054Pendle and Ribble Valley1,325788910500002,254
South RibbleWalton-le-Dale East3,172Ribble South1,2319441070480002,330
South RibbleWalton-le-Dale West3,283Ribble South1,3689541090520002,483
 Total75,429 31,92018,7153,24901,31500055,199

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

Old seat: Wyre and Preston North

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

Old seat: Wyre and Preston NorthTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
PrestonCadley3,582Preston1,2881,1483190330002,788
PrestonCollege2,700Preston1,0559731300490002,207
PrestonGarrison5,282Preston1,9631,7232230780003,987
PrestonGreyfriars5,188Preston2,1031,3482960730003,820
PrestonPreston Rural East3,360Lancashire North1,667791750250002,558
PrestonPreston Rural North5,328Lancashire North2,6571,0083140310004,010
PrestonSharoe Green4,679Preston1,7411,6492720860003,748
WyreBourne1,865Blackpool North and Fleetwood678705480300001,461
WyreBreck2,855Blackpool North and Fleetwood1,364782800490002,275
WyreBrock with Catterall3,058Lancashire North1,673677670460002,463
WyreCalder1,676Lancashire North841387410300001,299
WyreCarleton3,522Blackpool North and Fleetwood1,5721,001900540002,717
WyreGarstang5,280Lancashire North2,4181,2321240880003,862
WyreGreat Eccleston3,073Lancashire North1,583649550410002,328
WyreHambleton and Stalmine3,500Lancashire North1,610820630460002,539
WyreHardhorn with High Cross4,967Fylde2,2891,1081140720003,583
WyreMarsh Mill2,304Blackpool North and Fleetwood911694520320001,689
WyreStanah3,673Blackpool North and Fleetwood1,664988950550002,802
WyreTithebarn3,283Fylde1,607753910540002,505
 Total69,175 30,68418,4362,549097200052,641

The full details of these calculations are given on the Wyre and Preston North seat details page. Click on "Show workings".

New seat: Lancashire North

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

New seat: Lancashire North
DistrictWardElectorate
2017
Old Seat CON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
LancasterCarnforth and Millhead4,631Morecambe and Lunesdale1,6991,27210753330003,164
LancasterEllel3,970Lancaster and Fleetwood1,4241,207330540002,718
LancasterHalton-with-Aughton1,741Morecambe and Lunesdale6694374619180001,189
LancasterKellet1,611Morecambe and Lunesdale7922602314100001,099
LancasterLower Lune Valley3,441Lancaster and Fleetwood1,274952890400002,355
LancasterSilverdale1,406Morecambe and Lunesdale554281991314000961
LancasterUniversity and Scotforth Rural3,983Lancaster and Fleetwood1,2341,3371030520002,726
LancasterUpper Lune Valley1,810Morecambe and Lunesdale8972892415110001,236
LancasterWarton1,555Morecambe and Lunesdale6723333016120001,063
PrestonPreston Rural East189Preston6447330000117
PrestonPreston Rural East3,515Wyre and Preston North1,667791750250002,558
PrestonPreston Rural North5,509Wyre and Preston North2,6571,0083140310004,010
Ribble ValleyAighton, Bailey and Chaigley1,424Ribble Valley707254260220001,009
Ribble ValleyAlston and Hothersall2,115Ribble Valley994412590320001,497
Ribble ValleyBowland, Newton and Slaidburn1,115Ribble Valley60314922016000790
Ribble ValleyChatburn1,053Ribble Valley49820725015000745
Ribble ValleyChipping1,068Ribble Valley52519224015000756
Ribble ValleyDerby and Thornley2,405Ribble Valley964630700380001,702
Ribble ValleyDilworth2,090Ribble Valley882507600320001,481
Ribble ValleyGisburn, Rimington1,137Ribble Valley53322728017000805
Ribble ValleyRibchester1,267Ribble Valley60823038021000897
Ribble ValleyWaddington and West Bradford2,333Ribble Valley1,208345640350001,652
WyreBrock with Catterall3,384Wyre and Preston North1,673677670460002,463
WyreCalder1,785Wyre and Preston North841387410300001,299
WyreGarstang5,306Wyre and Preston North2,4181,2321240880003,862
WyreGreat Eccleston3,198Wyre and Preston North1,583649550410002,328
WyreHambleton and Stalmine3,488Wyre and Preston North1,610820630460002,539
WyrePilling1,779Lancaster and Fleetwood7604466060001,218
WyrePreesall4,405Lancaster and Fleetwood1,7551,225190180003,017
WyreWyresdale1,551Lancaster and Fleetwood6703787070001,062
 Total74,264 32,43517,1811,74413382500052,318

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


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