Start of Central Reserve or Obstruction

Start of Central Reserve or Obstruction signs appear on Irish roads marking the beginning point of central barriers, work zones, or obstructions requiring traffic to divide.

Common at the start of median barrier installation runs on motorway upgrades, beginning of central reservation drainage projects, and where overhead gantry foundation work occupies central areas.

Found where temporary central separation begins on previously undivided roads during construction.

These indicate the initial point where central obstruction appears requiring drivers to commit to left or right path.

Part of Ireland's sophisticated temporary traffic management systems guiding drivers through complex central construction scenarios on motorways and major national roads.

A central obstruction, barrier, or reserved area begins ahead requiring traffic to pass on designated sides.

Reduce speed to 50-60 km/h and select appropriate side based on directional signage and lane markings.

Once committed to left or right side of central obstruction, maintain that path until obstruction end is indicated.

Enhanced lane discipline required as central obstructions reduce available width and maneuvering space.

The obstruction may continue for substantial distance requiring sustained adaptation to divided flow pattern.

Do not attempt to change sides mid-obstruction.

Follow temporary markings precisely as they guide traffic around central work zones or barriers.

Failure to follow designated sides around central obstructions results in €80-€120 fines with 2 penalty points.

Excessive speed at start of central obstructions results in €160-€400 fines with 2-5 penalty points automatically doubled.

Attempting to change sides or cross central obstructions results in dangerous driving charges: 5 penalty points, €5,000 fines, and disqualification.

Collisions with central obstructions or other vehicles in divided flow zones result in full liability recognizing clear advance warning.

Workers positioned near central obstructions are particularly vulnerable making violations especially serious under Irish construction zone safety regulations.

Central obstruction recognition and proper response represents important temporary traffic pattern understanding in Irish theory tests.

You must understand that central obstruction start signs require side selection, speed reduction to 50-60 km/h, and commitment to chosen path without mid-obstruction crossing.

Theory questions test understanding of divided flow patterns, recognition of sustained obstruction possibility, and appropriate lane discipline requirements.

Practical assessments evaluate proper speed control, correct side selection based on signage, and maintaining proper positioning throughout central obstruction length.

Central obstruction management demonstrates essential skills for navigating Ireland's complex median construction projects on major routes.