Jump to content

User:DCary/SampleRcvResults

From Wikipedia, the free encyclopedia

Background

[edit]

This page provides illustrates some improved ways of reporting ranked choice voting results, using the November, 2011 contest for San Francisco mayor as an example. This sample offers some improvements by:

  • Using standard and most commonly used terminology for ranked choice voting, especially as used in California
  • Avoiding misleading terminology.
  • Separating aggregations of basic ballot accounting.
  • Giving a summary of votes in terms of the maximum votes counted for each candidate, which recognizes all transfers and is consistent with the elections infobox high-level presentation, rather than just first-choice or first round votes.
  • Providing a graphical representation of key vote count components for quicker and more intuitive understanding of the overall contest, integrated with supporting text quantities.

The numbers used in this sample are the latest numbers (November 30) published by the San Francisco Department of Elections.

The sample has built on existing election templates, modifying them where appropriate and for the the purposes of this sample, storing them in the User: namespace.

San Francisco mayor 2011 election results

[edit]

The following table shows a summary of the instant runoff for the election. The table shows the round in which the candidate was defeated or elected the winner, the votes for the candidate in that round, and what share those votes were of all votes counting for any candidate in that round. There is also a bar graph showing those votes for each candidate and categorized as either first-round votes or votes that were transferred from another candidate.

Municipal elections in California are officially non-partisan, though most candidates in San Francisco do receive funding and support from various political parties.


San Francisco mayoral election, 2011[1]
Party Candidate
Maximum
Round
Maximum
Votes
Share in
Maximum
Round
Maximum Votes
 First Round Votes  Transfer Votes 


Democratic Ed Lee (incumbent) 12 84,457 59.64%
Democratic Ed Lee (incumbent) 12 84,457 59.64%
Democratic John Avalos 12 57,160 40.36%
Democratic John Avalos 12 57,160 40.36%
Democratic Dennis Herrera 11 37,142 22.59%
Democratic Dennis Herrera 11 37,142 22.59%
Democratic David Chiu 10 25,267 14.51%
Democratic David Chiu 10 25,267 14.51%
Democratic Leland Yee 9 18,016 9.98%
Democratic Leland Yee 9 18,016 9.98%
Democratic Jeff Adachi 8 15,670 8.43%
Democratic Jeff Adachi 8 15,670 8.43%
Democratic Bevan Dufty 7 10,455 5.56%
Democratic Bevan Dufty 7 10,455 5.56%
Independent Tony Hall 6 7,896 4.14%
Independent Tony Hall 6 7,896 4.14%
Democratic Michela Alioto-Pier 5 7,378 3.82%
Democratic Michela Alioto-Pier 5 7,378 3.82%
Independent Joanna Rees 4 3,185 1.64%
Independent Joanna Rees 4 3,185 1.64%
Green Terry Joan Baum 4 1,738 0.89%
Green Terry Joan Baum 4 1,738 0.89%
Democratic Phil Ting 4 1,049 0.54%
Democratic Phil Ting 4 1,049 0.54%
Republican Cesar Ascarrunz 4 583 0.30%
Republican Cesar Ascarrunz 4 583 0.30%
Republican Wilma Pang 3 469 0.24%
Republican Wilma Pang 3 469 0.24%
(unknown) Emil Lawrence 2 397 0.20%
(unknown) Emil Lawrence 2 397 0.20%
Democratic Paul Currier 1 248 0.13%
Democratic Paul Currier 1 248 0.13%
Independent Write-in 1 38 0.02%
Independent Write-in 1 38 0.02%


San Francisco mayoral election, 2011
First Round Ballots
  Count
Share of
Contest
Ballots
Continuing Votes 194,418 98.6%
Over Votes 820 0.42%
Under Votes 2,004 1.02%
Contest Ballots 197,242 100.00%
Registered Voters [2]464,380
Contest Turnout 42.47%


Vote counts by round

[edit]

The following table shows how votes were counted[3] in a series of rounds of instant runoffs. Each voter could mark which candidates were the voter's first, second, and third choice. Each voter had one vote, but could mark three choices for how that vote can be counted. In each round, the vote is counted for the most preferred candidate that has not yet been eliminated. Then one or more candidates with the fewest votes are eliminated. Votes that counted for an eliminated candidate are transferred to the voter's next most preferred candidate that has not yet been eliminated.

Candidate Round 1 Round 2 Round 3 Round 4 Round 5 Round 6 Round 7 Round 8 Round 9 Round 10 Round 11 Round 12
Ed Lee 59,775 59,796 59,822 59,899 60,610 61,747 63,495 65,142 67,542 71,133 78,615 84,457
John Avalos 37,445 37,472 37,481 37,497 38,871 39,320 39,524 41,035 42,877 45,505 48,638 57,160
Dennis Herrera 21,914 21,937 21,958 21,977 22,606 23,531 24,257 27,081 29,673 32,276 37,142
David Chiu 17,921 17,929 17,946 17,994 18,495 18,957 19,326 20,327 22,461 25,267
Leland Yee 14,609 14,621 14,634 14,666 15,030 15,631 16,021 16,691 18,016
Jeff Adachi 12,534 12,557 12,586 12,624 13,156 13,728 15,048 15,670
Bevan Dufty 9,208 9,220 9,230 9,244 9,583 10,133 10,455
Tony Hall 6,930 6,958 7,001 7,025 7,397 7,896
Michela Alioto-Pier 6,648 6,660 6,694 6,720 7,378
Joanna Rees 3,104 3,111 3,143 3,185
Terry Joan Baum 1,665 1,676 1,698 1,738
Phil Ting 1,016 1,022 1,030 1,049
Cesar Ascarrunz 537 551 578 583
Wilma Pang 444 456 469
Emil Lawrence 382 397
Paul Currier 248
Write-in 38
Continuing votes 194,418 194,363 194,270 194,201 193,126 190,943 188,126 185,946 180,569 174,181 164,395 141,617
Exhausted ballots 0 55 144 212 1,272 3,429 6,232 8,401 13,735 20,070 29,828 52,524
Over Votes 820 820 824 825 840 866 880 891 934 987 1,015 1,097
Under Votes 2,004 2,004 2,004 2,004 2,004 2,004 2,004 2,004 2,004 2,004 2,004 2,004
Total 197,242 197,242 197,242 197,242 197,242 197,242 197,242 197,242 197,242 197,242 197,242 197,242

Continuing votes are votes that counted for a candidate in that round. Exhausted ballots represent votes that could not be transferred because a less preferred candidate was not marked on the ballot. Voters were allowed to mark only three choices because of voting system limitations. Over votes are votes that could not be counted for a candidate because more than one candidate was marked for a choice that was ready to be counted. Under votes are ballots were left blank or that only marked a choice for a write-in candidate that had not qualified as a write-in candidate.

References

[edit]