Harrogate and Knaresborough: New Boundaries 2018 Calculation

Harrogate and Knaresborough: Overview

Projection: CON seat

Implied MP at 2017:Andrew Jones  (CON)
County/Area:North Yorkshire (Yorks/Humber)
Electorate:77,265
Turnout:73.4%

PartyImplied 2017 VotesImplied 2017 Share
CON31,47655.5%
LIB13,31023.5%
LAB11,39520.1%
OTH5591.0%
CON Majority18,16632.0%

See overview of other seats in Yorks/Humber.



Introduction

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

Harrogate and Knaresborough: Map

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

List of old seats forming part of Harrogate and Knaresborough

The old seat(s) needed are:

Old seat: Harrogate and Knaresborough

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

Old seat: Harrogate and KnaresboroughTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
HarrogateBilton4,219Harrogate and Knaresborough1,4615649700000253,020
HarrogateBoroughbridge2,366Harrogate and Knaresborough1,1463612180000171,742
HarrogateClaro2,602Harrogate and Knaresborough1,1792563040000161,755
HarrogateGranby4,419Harrogate and Knaresborough1,5129731,1180000313,634
HarrogateHarlow Moor3,991Harrogate and Knaresborough2,0235336000000253,181
HarrogateHigh Harrogate4,241Harrogate and Knaresborough1,8617907830000703,504
HarrogateHookstone4,407Harrogate and Knaresborough1,5634989460000243,031
HarrogateKillinghall2,315Harrogate and Knaresborough1,3752322280000111,846
HarrogateKnaresborough East3,889Harrogate and Knaresborough1,4076227420000352,806
HarrogateKnaresborough King James4,044Harrogate and Knaresborough1,6624836990000312,875
HarrogateKnaresborough Scriven Park4,082Harrogate and Knaresborough1,8166616000000343,111
HarrogateLow Harrogate4,011Harrogate and Knaresborough1,9407536940000313,418
HarrogateNew Park3,954Harrogate and Knaresborough1,3717209820000303,103
HarrogatePannal4,351Harrogate and Knaresborough2,1534344810000323,100
HarrogateRossett4,753Harrogate and Knaresborough2,3595256640000283,576
HarrogateSaltergate4,108Harrogate and Knaresborough1,8627056940000283,289
HarrogateStarbeck4,456Harrogate and Knaresborough1,5178971,0490000313,494
HarrogateStray4,092Harrogate and Knaresborough1,9735297350000243,261
HarrogateWoodfield4,019Harrogate and Knaresborough1,2968598030000362,994
 Total74,319 31,47611,39513,310000055956,740

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

New seat: Harrogate and Knaresborough

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

New seat: Harrogate and Knaresborough
DistrictWardElectorate
2017
Old Seat CON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
HarrogateBilton4,113Harrogate and Knaresborough1,4615649700000253,020
HarrogateBoroughbridge2,373Harrogate and Knaresborough1,1463612180000171,742
HarrogateClaro2,389Harrogate and Knaresborough1,1792563040000161,755
HarrogateGranby4,949Harrogate and Knaresborough1,5129731,1180000313,634
HarrogateHarlow Moor4,331Harrogate and Knaresborough2,0235336000000253,181
HarrogateHigh Harrogate4,770Harrogate and Knaresborough1,8617907830000703,504
HarrogateHookstone4,129Harrogate and Knaresborough1,5634989460000243,031
HarrogateKillinghall2,514Harrogate and Knaresborough1,3752322280000111,846
HarrogateKnaresborough East3,822Harrogate and Knaresborough1,4076227420000352,806
HarrogateKnaresborough King James3,914Harrogate and Knaresborough1,6624836990000312,875
HarrogateKnaresborough Scriven Park4,237Harrogate and Knaresborough1,8166616000000343,111
HarrogateLow Harrogate4,654Harrogate and Knaresborough1,9407536940000313,418
HarrogateNew Park4,225Harrogate and Knaresborough1,3717209820000303,103
HarrogatePannal4,221Harrogate and Knaresborough2,1534344810000323,100
HarrogateRossett4,869Harrogate and Knaresborough2,3595256640000283,576
HarrogateSaltergate4,479Harrogate and Knaresborough1,8627056940000283,289
HarrogateStarbeck4,758Harrogate and Knaresborough1,5178971,0490000313,494
HarrogateStray4,441Harrogate and Knaresborough1,9735297350000243,261
HarrogateWoodfield4,077Harrogate and Knaresborough1,2968598030000362,994
 Total77,265 31,47611,39513,310000055956,740

And these are the implied results for 2017 for the new seat of Harrogate and Knaresborough. 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, sc7052)