Carlisle: New Boundaries 2018 Calculation

Carlisle: Overview

Projection: CON seat

Implied MP at 2017:John Stevenson  (CON)
County/Area:Cumbria (North West)
Electorate:79,407
Turnout:69.6%

PartyImplied 2017 VotesImplied 2017 Share
CON28,86452.2%
LAB22,14140.1%
UKIP1,9033.4%
LIB1,8983.4%
Green3880.7%
OTH730.1%
CON Majority6,72312.2%

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 Carlisle 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.

Carlisle: Map

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

List of old seats forming part of Carlisle

The old seat(s) needed are:

Old seat: Carlisle

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

Old seat: CarlisleTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
CarlisleBelah4,648Carlisle1,8291,0936810300003,093
CarlisleBelle Vue4,592Carlisle1,5691,5166211100003,258
CarlisleBotcherby3,961Carlisle1,3691,5476312000003,099
CarlisleBurgh1,630Carlisle700274441700001,035
CarlisleCastle3,478Carlisle1,3381,4131329900002,982
CarlisleCurrock4,053Carlisle1,3121,58310311400003,112
CarlisleDalston4,802Carlisle1,9818161379700003,031
CarlisleDenton Holme4,207Carlisle1,3221,6568610500003,169
CarlisleHarraby4,661Carlisle1,5521,6107211200003,346
CarlisleMorton4,376Carlisle1,2221,5178610700002,932
CarlisleSt Aidans3,882Carlisle1,3721,45110010300003,026
CarlisleStanwix Urban4,386Carlisle1,7651,017869500002,963
CarlisleUpperby3,579Carlisle1,0551,5181039500002,771
CarlisleWetheral3,736Carlisle1,560614357600002,285
CarlisleYewdale4,516Carlisle1,5261,2488110200002,957
 Total60,507 21,47218,8731,2581,456000043,059

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

Old seat: Penrith and The Border

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

Old seat: Penrith and The BorderTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
AllerdaleWarnell1,568Penrith and Solway7802005745470041,133
AllerdaleWigton4,356Penrith and Solway1,3721,46319016011100153,311
CarlisleBrampton3,422Carlisle1,45876117111911800112,638
CarlisleGreat Corby and Geltsdale1,659Carlisle7323635816170041,190
CarlisleHayton1,574Carlisle72831564551900261,207
CarlisleIrthing1,516Carlisle7432615118480071,128
CarlisleLongtown and Rockcliffe2,978Carlisle1,3106941271075300102,301
CarlisleLyne1,541Carlisle7832064118420041,094
CarlisleStanwix Rural3,628Carlisle1,6386681281149100112,650
EdenAlston Moor1,638Penrith and Solway69434177222500211,180
EdenAppleby (Appleby)1,018Westmorland and Lonsdale4232174615140017732
EdenAppleby (Bongate)1,324Westmorland and Lonsdale5162561812017005995
EdenAskham1,049Penrith and Solway5211661001012004813
EdenBrough1,035Westmorland and Lonsdale4761884113120018748
EdenCrosby Ravensworth1,131Penrith and Solway597140341011002794
EdenDacre1,118Penrith and Solway45817713712130011808
EdenEamont1,180Penrith and Solway607157371311003828
EdenGreystoke1,138Penrith and Solway577150381114007797
EdenHartside1,039Penrith and Solway503151371012009722
EdenHesket2,403Penrith and Solway1,28233276252200251,762
EdenKirkby Stephen2,011Westmorland and Lonsdale94436187252400221,463
EdenKirkby Thore1,173Penrith and Solway5432394715150021880
EdenKirkoswald1,132Penrith and Solway5501944812160015835
EdenLangwathby1,245Penrith and Solway5722185214160016888
EdenLazonby1,107Penrith and Solway594153381112003811
EdenLong Marton952Penrith and Solway506125331010005689
EdenMorland1,004Penrith and Solway4901733912120016742
EdenOrton with Tebay1,061Westmorland and Lonsdale533165421112003766
EdenPenrith Carleton1,230Penrith and Solway5222021161613003872
EdenPenrith East2,052Penrith and Solway82141223429230071,526
EdenPenrith North3,178Penrith and Solway1,283626376434300112,382
EdenPenrith Pategill1,025Penrith and Solway3602371421511004769
EdenPenrith South1,905Penrith and Solway709403234302300281,427
EdenPenrith West2,163Penrith and Solway762719282333300111,840
EdenRavenstonedale753Westmorland and Lonsdale4131022579003559
EdenShap1,077Penrith and Solway548173371212007789
EdenSkelton1,203Penrith and Solway633138351011002829
EdenUllswater1,009Penrith and Solway599133371113006799
EdenWarcop1,081Westmorland and Lonsdale4981864613140014771
 Total62,676 28,07812,1653,6411,1421,0310041146,468

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

New seat: Carlisle

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

New seat: Carlisle
DistrictWardElectorate
2017
Old Seat CON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
CarlisleBelah4,475Carlisle1,8291,0936810300003,093
CarlisleBelle Vue4,714Carlisle1,5691,5166211100003,258
CarlisleBotcherby4,484Carlisle1,3691,5476312000003,099
CarlisleBrampton3,697Penrith and The Border1,45876117111911800112,638
CarlisleBurgh1,497Carlisle700274441700001,035
CarlisleCastle4,312Carlisle1,3381,4131329900002,982
CarlisleCurrock4,502Carlisle1,3121,58310311400003,112
CarlisleDalston4,384Carlisle1,9818161379700003,031
CarlisleDenton Holme4,583Carlisle1,3221,6568610500003,169
CarlisleGreat Corby and Geltsdale1,668Penrith and The Border7323635816170041,190
CarlisleHarraby4,842Carlisle1,5521,6107211200003,346
CarlisleHayton1,692Penrith and The Border72831564551900261,207
CarlisleIrthing1,582Penrith and The Border7432615118480071,128
CarlisleLongtown and Rockcliffe3,226Penrith and The Border1,3106941271075300102,301
CarlisleLyne1,533Penrith and The Border7832064118420041,094
CarlisleMorton4,243Carlisle1,2221,5178610700002,932
CarlisleSt Aidans4,379Carlisle1,3721,45110010300003,026
CarlisleStanwix Rural3,715Penrith and The Border1,6386681281149100112,650
CarlisleStanwix Urban4,287Carlisle1,7651,017869500002,963
CarlisleUpperby4,010Carlisle1,0551,5181039500002,771
CarlisleWetheral3,305Carlisle1,560614357600002,285
CarlisleYewdale4,277Carlisle1,5261,2488110200002,957
 Total79,407 28,86422,1411,8981,903388007355,267

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