RailGraph — Wimbledon-A Interlocking Digital Twin

CSV EVENT LOG INGESTION

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DROP EVENTS.CSV HERE OR CLICK TO BROWSE

Auto-detects timestamp · channel · transition columns

PARSED METRICS

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Events

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Sections

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Relays

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Movements

INFERRED TRACK CIRCUIT ADJACENCY — CONNECTS_TO EDGES no data

FLAG SUSPECT if transit gap > ms ⓘ AVG STRADDLE = A.clr − B.occ · positive = train spanned both circuits · typical range 2–20s · τ = ±20s/3s window

FROM	TO	HANDOVERS	AVG STRADDLE	C_AB	CONFIDENCE	POINTS
Upload a CSV to infer topology.

RELAY STATE MATRIX

No events loaded — upload a CSV above.

MODE: 25%

PROPERTIES

Select a node or edge to edit its properties.

DIAGRAM SETTINGS

Min traversals: Line spacing: 80px

DETECTED RUNNING LINES

Each connected group of sections is shown as a separate line. Set UP to reverse the display order (right→left). Set FAST to apply yellow (traditional fast-line colour). Signals are placed at the entry end of their section based on direction.

TRAIN MOVEMENT PLAYBACK

--:--:--.--- UTC

DIAGNOSTIC HUD — LIVE TRANSITIONS

Load CSV then press PLAY.

TELEMETRY

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km/h

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Section

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Dist. m

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Movement

Channel	Type	State	Since	Meaning
Seek or pause playback to inspect state.

RELAY CHAIN HEALTH MONITOR ● HEALTHY ● LATENT ● DEGRADED

METHODOLOGY: Flags relays where the burst-latency distribution is unusually wide or right-skewed — indicating some transitions are slower than expected. Only flags when spread > 2.5× AND skew > 1.5 simultaneously, to suppress traffic-pattern false positives. ↻ LOAD HISTORICAL BASELINE

RELAY CHAIN LATENCY

Load CSV to analyse relay chain latency.

POINT MACHINE OPERATION TIME (Δt: REQUEST → DETECTION)

Δt = time from (AD) K RX DN (route request) to NWKR/RWKR UP (point detected in position). Typical healthy range: 3–8s. Flagged at p50 > 10s or spread > 2×. ↻ LOAD BASELINE

Load CSV to analyse point machine timing.

Relay	Hist. p50 (ms)	Current p50 (ms)	Change	Sessions
No baseline loaded.

INFERRED CONTROL TABLE BS 376 / NR/GN/SIG/11202 format · derived from event log

Each row = one observed route. Hard constraints (★) appear in >90% of observations. Variable entries indicate route variants (A/B). Confidence = fraction of route-set events that show this prerequisite. Click any row to see the full state snapshot detail.

Hard constraints only

ROUTE	OBS.	POINTS REQUIRED	TRACKS CLEAR	OVERLAP	HOSTILE ROUTES	REPLACEMENT	APP. LOCK $t	CONFIDENCE
Run topology engine to derive control table.

RECIPROCAL PROVING — RGPR / HGPR

Signal	RGPR	H/DGPR	ECPR	Status
No data.

POINT CORRESPONDENCE — NWKR / RWKR

Points	NWKR	RWKR	NKLPR	WZR	Status
No data.

TRAIN GRAPH — TIME × DISTANCE (IBRY–MAREY FORMAT)

⟵ diagonal line = train in motion · steeper = faster ⟵ horizontal segment at station line = dwell (arrival → departure) ⚠ crossing lines = potential conflict on same section ━━ platform / stopping point

PLATFORM DWELL TIMES

Section	Visits	Avg Dwell	Min	Max	Type
No data.

GRAPH SETTINGS

Time axis:

Sections shown:

Journeys: complete paths · short fragments excluded

Section spacing: 38px

Highlight platforms:

Y-axis: sections ordered by topological route sequence, equally spaced (add section_length to edge properties for distance-proportional spacing). Platform sections are highlighted with prominent horizontal rules. Dwell time = time between last occupation event and first subsequent clear event at the same section.