The Trip Engine Room: a free planner that reads the whole archive.

The archive holds twenty-two complete journey files, from five-day minis to a twenty-eight-day Grand Quest — each with a verified campsite spine, a day-by-day route and an honest operations briefing. Which is wonderful, and useless, at the moment you actually have nine days in late May and a start point in Yorkshire.

Generic trip planners answer that question with someone else’s averages. The Engine answers it with this site’s own files: it was built to read the archive natively — every route, every seasonal wildlife window, every ferry, every membership card — and to be honest about the thing most planners fudge: how far away the start of a trip really is from your driveway.

That last point does more work than it sounds. A fortnight in the Highlands is a different proposition from Manchester than from Maidstone — not slightly different, but two-driving-days different — and a UK motorhome route planner that ignores the approach is really a brochure. So every expedition file publishes a gateway table of honest driving hours from each region of the UK and Northern Ireland, and the Engine reads it first. The same twenty-two files produce a genuinely different ranking for a Yorkshire briefing than for a Cornish one, which is exactly what a recommendation should do.

Beyond distance and days, the briefing carries the quieter preferences that make or break a campervan holiday, and the scorer treats each one seriously. Ferry appetite swings island files hard: tell it the van rides boats happily and the sailings-built routes surface with their crossings counted as features; tell it never, and they sink rather than ambush you at the booking screen. Lane tolerance reads each file’s single-track honesty — the passing-place miles, the hedge-canyon warnings — so a driver who wants main roads isn’t handed a peninsula. Crew mode shifts the weighting toward files with pram-flat set-pieces, carrier terrain flagged, and fit-day/family-day splits already written.

Then the calendar joins in. Every expedition carries its wildlife windows month-coded — puffin boats that stop sailing, osprey nests that empty in September, seal pups that only arrive in November — plus the season’s honest warnings, from firing-range calendars to a certain motorcycling fortnight that books an entire island. Brief the Engine for June and for October and the same destination reads as two different trips, because it is.

Finally the tier ladder holds the shape: MINI TRIPS to GRAND QUEST, with a window-gap penalty stopping a five-day file rattling around inside a three-week briefing. Long weekends get long-weekend answers; a month gets the summit files.

Your van is part of the ranking. The Engine reads the same vehicle profile as the seven calculators and the Landship page — set your dimensions, payload, battery, solar and economy once, anywhere, and every tool follows. Length matters most: a 7.4 m van is told plainly which files it cannot physically do, including the 6.5 m limit on the road into Wasdale, rather than discovering it at a passing place.

The Trip Engine Room takes about ten seconds to brief and gives back a ranked answer you can interrogate, trim, save and print. It pairs naturally with the archive guide — read how the files are built there, then let the Engine argue about which one is yours.