Service dates run IST 03:00 to 03:00. 0 days are in this window. No calendar date is missing inside the archive span.
The median above is the median of each day's own median for all hours, across 0 days. It is not a pooled percentile. A day without a median for this window is omitted, not entered as 0. Peak, off-peak, evening, and midday need 1,00,000 scored hops before a day counts. Vehicles per day, median of the daily counts: —. That is not a unique fleet across days. Grid cells drawn per day, median: —.
Colour is bus chord speed in km/h, median of scored hops on this service date. A cell is a 0.01° square drawn only with at least 30 scored hops and 3 vehicles. This map is one service date. Cells below the floor are not drawn. An empty area is not zero speed and not a free-flow road. 0 cells.
Haversine bus speed between successive GPS fixes. It includes stops and is not a road speed.
Feed speed is 0 on every archived row in this window. Every km/h figure is calculated from successive GPS fixes.
Stop-to-stop travel time and stop headway are absent for these Parquet days. The derive job reads Postgres and deletes that date's trip tables, so it was not run. There is no shapes file, so nothing is matched to a road segment. Absence is left blank. It is not shown as zero travel time or zero congestion.
Exports the cells and routes currently in the window. Columns include the period, the sample, and the speed definition.
Count of GPS rows, no service days. A missing date is absent from the axis. A short bar is a small archive, not a speed.
One point per day: that day's median of scored hops. Days under 1,00,000 hops in this window are blank. A line across a blank day is the chart joining its neighbours, not an interpolated speed. Haversine bus speed between successive GPS fixes. It includes stops and is not a road speed.
Peak, IST 07–10 and 17–20. 0 days plotted.
Off-peak, IST 11–16, in blue. Same days, same hop rule. This is not a stop-pair travel time.
Median chord speed by IST hour for no selected day. Hours under 10,000 scored hops are omitted, including ingestion holes. A value near 0 is a measured median of standing buses, not a missing hour. Sample this day: — scored hops.
Count of scored hops in km/h bins, not a travel-time distribution. Stop-pair travel times were not calculated. — hops.
p90 minus p50 of hop speed. It mixes standing and moving. It is not travel-time variance and not a reliability ranking.
Median of daily all-hour medians. Weekdays: — across 0 days. Weekends: — across 0 days. Fewer than four days on a side is too small to treat as a pattern. Both include nights and stops.