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Should Meridian City charge cars to enter downtown at peak hours?

chain-eval-congestion-pricing · state: ready · 5 steps

Scoring run · NEG · v3

After comment foM4ag (step 5)

1 run

Team A

5.257

Net score

+0.649

Final state

Team B

3.393

Engine cross-check failed — displayed numbers are the browser recompute

  • total: recomputed 1.863876 vs stored state.total_points 0.648843

A sc_durable_traffic_reduction

Increasing the expected durable reduction in downtown car traffic from a peak-hour cordon charge when side A is chosen strengthens Team A's case.

+5.257L 5.0 · q 1.00 · E[d] 1.051 · prior 0.608
d 5large durable1.0%
d 3moderate durable15.9%
d 1small or temporary52.3%
d 0none30.8%

bars: belief with evidence · tick: prior-only baseline (the score is the E[d] gap between them)

⊕ blendE[u] 0.286stockholm_traffic_reduction w 0.50milan_traffic_reduction w 0.50
v_stockholm_traffic_reductionw 0.50

How large and durable was the measured inner-city traffic reduction associated with Stockholm's 2006 congestion-charge trial and later permanent charge?

no reduction or increase0.0088.8%
small or temporary reduction0.337.5%
moderate or partly sustained reduction0.673.4%
large durable reduction1.000.3%
sidsourceatompushes
mcZGHMcitedAn external audit found that the toll-gantry system used for the 2006 Stockholm congestion-charge evaluation double-counted vehicles that crossed multiple gantries during one trip. no reduction or increase +0.56
T8E5hhcitedretiredStockholm's city transport office's toll-gantry-based evaluation found that inner-city traffic dropped by about 20% almost immediately after the 2006 congestion-charge trial began. large durable reduction +0.78
T8E5hhcitedq 0.40Stockholm's city transport office's toll-gantry-based evaluation found that Stockholm's inner-city traffic reduction persisted after the congestion charge was made permanent. large durable reduction +0.28
mcZGHMassertedStockholm's city transport office formally withdrew its 2006 congestion-charge trial evaluation in the week of the submission. no reduction or increase +0.57
mcZGHMcitedStockholm's city transport office stated that its headline traffic-reduction figure from the 2006 trial evaluation can no longer be relied upon. no reduction or increase +0.55
14qSjccitedAn independent university research group's evaluation of Stockholm's 2006 congestion-pricing trial found roughly a 20% reduction in traffic crossing into Stockholm's inner city during the trial period. moderate or partly sustained reduction +0.85
v_milan_traffic_reductionw 0.50

How large and sustained was the measured reduction in vehicle entries into Milan's Area C charged zone after implementation of the Area C congestion charge?

no reduction or increase0.0029.6%
small or temporary reduction0.337.9%
moderate or partly sustained reduction0.6738.8%
large sustained reduction1.0023.7%
sidsourceatompushes
foM4agcitedMilan's Area C congestion charge reduced vehicle entries into the charged zone by roughly 30% during its first years, according to Milan municipal monitoring reports. moderate or partly sustained reduction +0.80

B sc_downtown_retail_sales_loss

Increasing the expected reduction in downtown retail and small-business sales from a peak-hour cordon charge when side A is chosen strengthens Team B's case.

-3.393L 3.0 · q 1.00 · E[d] 1.131 · prior 0.608
d 5strong1.8%
d 3moderate19.3%
d 1mild46.2%
d 0none32.7%

bars: belief with evidence · tick: prior-only baseline (the score is the E[d] gap between them)

⊕ blendE[u] 0.297stockholm_retail_sales_decline w 0.50london_retail_sales_decline w 0.50
v_stockholm_retail_sales_declinew 0.50

How large and durable was any retail sales decline inside Stockholm's congestion-charge zone after implementation?

no decline or increase0.0045.2%
small or temporary decline0.3342.3%
moderate or persistent decline0.679.1%
large persistent decline1.003.4%
sidsourceatompushes
1FilU9citedStockholm's downtown retail association reported a mid-single-digit sales dip in the congestion-charge zone during the first year of implementation. small or temporary decline +0.63
v_london_retail_sales_declinew 0.50

How large and durable was any retail sales decline inside London's congestion-charge zone after implementation?

no decline or increase0.0046.0%
small or temporary decline0.3310.5%
moderate or persistent decline0.6733.9%
large persistent decline1.009.6%
sidsourceatompushes
1FilU9citedLondon shopkeepers' groups have reported for years that retail sales declined in the congestion-charge zone. moderate or persistent decline +0.49
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