Food-Truck Row — STV: one seat per side¶
Generated from bv2210_fvg8y8_stv_share.yaml — do not edit by hand. Regenerate: python STARVote_LH_tabulation_engine/tools_adam/scripts/build_yaml_pages.py.
Method: STV (proportional, ranked ballots) · 2 seats · Expected winners: Arepa, Donut
▶ Live on BetterVoting: vote · results ↗ (election fvg8y8 · test BV2210).
Scenario¶
One 100-voter electorate, two food-truck spots, five counts — this file is the STV count (ranked ballots, Droop quota + transfers). The savory side is a 57-voter OUTRIGHT MAJORITY split across three trucks (Arepa 20 first choices, Bao 19, Churro 18); the sweet side is a disciplined 43-voter minority on two (Donut 22, Eclair 21). Same opinions on every ballot; only the counting rule changes: SNTV hands the majority ZERO seats (Donut+Eclair), Bloc STAR and Bloc Ranked Robin hand it BOTH (Arepa+Bao), STAR-PR and STV share them one per side (Arepa+Donut). THE HEADLINE HERE: the ranked route to the same share. Churro's elimination pools the savory vote, Arepa is elected; Eclair's elimination pools the sweet vote, Donut is elected. One seat per ~quota of voters. (This race deliberately ends with a hopeful still standing — clear of the BV sole-survivor STV crash documented in 06_Other/STV/bv_stv_sole_survivor_crash/.) Full lesson: README.md in this folder. Live on BetterVoting (Test ID BV2210): https://bettervoting.com/fvg8y8 — all five races agree with the LH engine, no genuine tie anywhere. Live results: https://bettervoting.com/fvg8y8/results
Ballots¶
Each row is one voter's ranking, most-preferred first (N: prefix = N identical ballots).
20:Arepa>Bao>Churro
19:Bao>Arepa>Churro
18:Churro>Arepa>Bao
22:Donut>Eclair
21:Eclair>Donut
What the engine says¶
Where the votes went. Band thickness is votes; a band leaving an eliminated candidate lands on whoever that ballot ranked next, or on inactive if it ranked nobody who was left.
The count, step by step — the rounds and how the winner is reached:
--- STV / Single Transferable Vote (multi-winner — 2 seats) ---
Food-Truck Row — STV: one seat per side
Tabulating 100 ballots (ranked ballots).
2 seats; quota = 33.33 (exact Droop, votes/(seats+1)) — 33.3% of 100.
Elected at >= quota, and every surplus is measured from it.
(Hand-count Droop, floor(100/3)+1 = 34, is a different but equally standard rule.)
ROUND 1
Candidate Votes Status
----------- ------- --------
Donut 22 Hopeful
Eclair 21 Hopeful
Arepa 20 Hopeful
Bao 19 Hopeful
Churro 18 Rejected
ROUND 2
Candidate Votes Status
----------- ------- --------
Arepa 38 Elected
Donut 22 Hopeful
Eclair 21 Hopeful
Bao 19 Hopeful
Churro 0 Rejected
ROUND 3
Candidate Votes Status
----------- ------- --------
Arepa 33.33 Elected
Bao 23.67 Hopeful
Donut 22.00 Hopeful
Eclair 21.00 Rejected
Churro 0.00 Rejected
FINAL RESULT
Candidate Votes Status
----------- ------- --------
Arepa 33.33 Elected
Donut 43.00 Elected
Bao 23.67 Rejected
Eclair 0.00 Rejected
Churro 0.00 Rejected
Winner(s) — STV / Single Transferable Vote (multi-winner — 2 seats)
Arepa
Donut
Full audit — preference matrix, Condorcet, and score distribution¶
--- Smith Set (the generalized Condorcet winner) ---
The smallest group whose every member beats every candidate outside it —
the honest answer to "who is even in contention?".
Smith set (1 of 5): Arepa
Outside (4): Bao, Churro, Donut, Eclair
One member ⇒ Arepa is the Condorcet winner, beating every rival head-to-head.
More: 07_Concepts/topics/smith_set.md
Everything in one file: the _tabulated mirror (regenerated on every run; every analysis forced on).
Run it yourself:
python STARVote_LH_tabulation_engine/starvote_larry_hastings.py method_comparisons/food_truck_row/cases/bv2210_fvg8y8_stv_share.yaml
See also¶
More cases in this set: bv2210_fvg8y8_bloc_rr_sweep · bv2210_fvg8y8_bloc_star_sweep · bv2210_fvg8y8_sntv_split · bv2210_fvg8y8_star_pr_share