The difference between waiting time implied by settled predicted arrival spacing and waiting time implied by scheduled spacing for eligible high-frequency route–stop hours.

定义

The difference between waiting time implied by settled predicted arrival spacing and waiting time implied by scheduled spacing for eligible high-frequency route–stop hours.

公式

Predicted EWT − scheduled EWT, where each EWT = Σ(gap²) ÷ (2 × Σ(gap)). Gaps are ordered independently for scheduled and predicted arrivals before aggregation.

单位

seconds, displayed in minutes

人群

Eligible high-frequency bus route–stop hours with ordered scheduled and settled predicted arrivals.

测量时段

Eligible completed service days in the latest 30 days.

覆盖范围

Only service days that pass prediction-matching quality are included; every result retains its matched-arrival and stop counts.

发布资格

At least five matched arrivals in a route–stop hour and an average scheduled headway from two through twelve minutes.

范围

Completed service days in the latest 30 days that satisfy the prediction-matching quality threshold; route–stop hours require at least five matched arrivals and an average scheduled headway from two through twelve minutes.

这个数字可以说明什么

Difference in wait implied by predicted spacing versus scheduled spacing. It is not observed passenger wait, actual door-opening regularity, or a low-frequency punctuality measure.

来源和标识

• 方法 · Settled predicted excess-wait methodsettled-predicted-excess-wait-v1
• 当前 API · Current network reliability public APIreliability-evidence

实施状态

候选来源

已在此候选源中实现。

公开发布

此指标版本尚未在公开的正式运行环境中经过独立验证。

当前证据

• network-reliability:current

变更历史

此指标版本没有登记在案的重大变更记录。