03 / JUNCTION OVERVIEW

NX—4 Route Interlocking

Deterministic, fail-safe routing across a four-terminal rail junction.

LIVE 3D VIEWPORTJUNCTION 04 / THROAT A

CAMERA CONTROLDRAG TO ORBIT · SCROLL TO ZOOM

WEST APPROACHCONTROLLED ZONEEAST DEPARTURE

ROUTE CLEAR / OCCUPIED

CROSSOVER / RESERVED

STOP / FAILED CIRCUIT

SCHEMATIC · NOT TO SCALE

COMPLETED TRAINS000ROUTES RELEASED

ACTIVE MOVEMENTS00SAFE SIMULTANEOUS ROUTES

REQUESTS PENDING00DISPATCH QUEUE

AVERAGE WAIT0.0 sCOMPLETED DISPATCHES

BLOCK OCCUPANCYTC / 07

INTERLOCKING LOGLAST 08 EVENTS

INTERLOCKING CONTROL

SYSTEM NOMINAL

01ROUTE COMMAND

Request a cleared path. Conflicting routes remain queued until every required circuit is released.

FROMTO

02TRAFFIC GENERATOR

Automatic trafficSeeded stochastic train requests

Arrival demand 0.26 req/s

LOWHIGH

Train speed 3.4 m/sSimulation rate 1.0 ×

03FAULTS & POINTS

TRACK CIRCUIT TO INJECT

MANUAL POINT OVERRIDE

Locked points reject manual commands. Faulted circuits remain fail-safe occupied.

04SAFETY OVERRIDE

SAFETY MODELCONSERVATIVE RESOURCE LOCKINGEducational demonstration only · Not for real railway operations