Corridor fencing exists to keep people off the track, and it is held to the rail authority's specification rather than to preference. Height, mesh, toppings and post detail are commonly prescribed. So is the rest of the job: access permits, protection arrangements, and work carried out within approved windows. Tools, materials and plant have to be controlled so nothing can foul the track, and access control at maintenance points and level crossing approaches is designed rather than improvised. Trespass-prevention detailing gets aimed at known access points and desire lines, because a corridor fence that ignores where people already cross will be defeated at exactly those points.
Utility enclosures carry their own requirements again. Fencing around energised equipment is built to the asset owner's standard — that standard commonly addresses clearances, the earthing and bonding of the fence itself, and signage and gate arrangements, and it is the asset owner's engineering documentation that governs, not a fencing catalogue. The right sequence is to obtain the standard, quote against it, and coordinate access with the asset owner's operations team rather than assuming a site is available because it looks empty.
Most of this work happens at night or across a weekend. Corridor and utility fencing frequently cannot happen during operating hours, which changes the planning rather than just the timing: lighting, night-work procedures, and a program that gets the critical section closed and the site made safe before the asset returns to service. Where a possession window is fixed and short, the run is planned so the section that must be completed inside it is completed inside it, with the balance following in normal hours.
What you should require before anyone mobilises. This is the part worth being blunt about, because it is where infrastructure work goes wrong. **Ask any contractor — including us — to produce, in writing and in date: rail industry worker inductions and current competencies for every crew member who will be on site; the access permits and protection arrangements for the work; a safe work method statement; current public liability and workers' compensation cover; and the site-specific documentation your principal contractor or asset owner requires.** Do not accept any of it verbally, and do not accept a general assurance of "experience" in place of the documents. If a contractor cannot produce them for the specific corridor or asset in question, they cannot do that work — regardless of how much fencing they have built elsewhere.
