Self-Driving Xinjiang in a Convoy: Etiquette, Comms and Hand Signals

More Cars, More Fun, More Ways to Go Wrong

Self-driving Xinjiang with one car is a complete trip. Self-driving with two or three cars is a better trip, until it is not. The difference is almost always discipline. A convoy turns a long desert transit into a shared adventure: someone else to flag the checkpoint, someone else to watch the rear, someone else to find the good noodle shop. But a convoy also multiplies every mistake by the number of vehicles, and on empty roads the mistakes come fast.

I have driven Xinjiang in pairs and in a five-car group. The good trips had rules agreed before the first kilometer. The bad ones made the rules up at the fuel pump, which is the worst place to discover your friend believes the speed limit is a suggestion.

This is a practical guide to keeping a multi-car trip safe and sane, written for the person who ends up, willingly or not, leading the pack.

Before You Leave the Parking Lot

Agree the basics while everyone is still calm. Who leads. Who sweeps (drives last). The max speed, which should match the slowest car, not the fastest driver’s ego. The fuel rule: nobody drops below half a tank without a planned stop. The phone rule: a group chat that actually works offline or on the radio, because coverage on Xinjiang’s back roads is unreliable and you will lose people otherwise.

I also assign a “no one gets left” rule explicitly. The sweep car is responsible for the car ahead of it, and the lead is responsible for not outrunning the group’s slowest comfortable pace. The self-drive essentials still apply per car: spare, water, offline maps. In a convoy they are the floor, not the ceiling.

Spacing and the “Lost Car” Problem

The classic convoy failure is the gap. Car one slows for a photo, car two sails past, car three gets waved on by car two who assumes car one is just behind, and suddenly car one is alone at a pull-off wondering where everyone went. On a straight desert highway this is merely annoying. On a winding mountain pass it is dangerous.

The fix is dull and effective: keep the car ahead in sight, and if you lose sight, slow until you regain it or the sweep confirms the missing car is accounted for. At every junction, the lead waits where the road forks and does not move until the sweep arrives. I have sat at a fork for ten minutes in the rain doing exactly this, and every time it prevented a split group.

Hand signals help. A raised hand for “slow,” a pointed finger for “follow me,” a flat palm for “stop.” Agree them in the lot. In dust or glare, signals beat shouts.

Radios, Phones, and the Coverage Gap

Walkie-talkies are worth it for a group of three or more cars. Cheap license-free units reach a few kilometers, enough to say “cattle on the road” or “I’m stopping.” Phones fail exactly where you need them, in the canyon or the open desert. The bad-weather driving guide assumes you are alone; in a convoy, the radio is your early-warning system for a whiteout or a flooded crossing up ahead.

Set a check-in rhythm. “All good?” every hour, even if nothing is happening. Silence in a convoy is not golden. Silence means someone is fiddling with a map and about to miss the turn.

Fuel, Food, and the Group Stop

Stop as a group or not at all. The mistake is the lead car fueling and the others assuming they will “catch up later,” which on a remote highway means a separated group and a nervous sweep. I plan fuel so all cars arrive low and leave full together. Same for food: pick one place, park together, eat together. It is slower, and it is the entire point of traveling with people.

The breakdown guide matters more in a convoy, because the broken car is rarely the lead. The sweep should be the most experienced, so the stranded car is never alone and the lead is not doubling back blindly. Agree this role before you need it.

Speed, Tickets, and the Convoy Trap

Checkpoints and speed cameras treat each car individually. The lead can sail through at the limit while the trailing cars, delayed at a junction, arrive to find a camera they did not expect. The speed and checkpoint guide is essential reading for every driver, not just the leader. In a convoy, brief everyone: same speed, same lane discipline, same documents ready at the stop.

The trap is the urge to “keep up.” On the open road, car two sees car one pull away and speeds to close the gap, then gets the camera car one dodged. Hold the agreed speed. The group reforms at the next planned stop, not on the throttle.

When a Car Drops Behind

Decide in advance: if a car is more than, say, five minutes behind with no radio contact, the sweep pulls over at the next safe spot and waits, and the lead is informed by the sweep, not by guessing. Do not have the lead slow-roll hoping the group catches up; that strands everyone in a lane. Clear protocol, rehearsed once, removes the panic.

I have used a simple version: “sweep owns the rear, lead owns the route, nobody owns the speed but the slowest car.” It has never failed me.

Rentals and the Extra Drivers

If you are in rented cars, every driver needs to be on the rental agreement. The car rental guide covers the paperwork; in a convoy, multiply it by the number of vehicles and confirm each before you leave the city, because a rented car with an unlisted driver is a problem you do not want at a checkpoint two hundred kilometers out.

The Payoff

Done right, a convoy is the best way to see Xinjiang: shared costs, shared lookout, shared stories at the night’s stop. Done wrong, it is three cars arguing about who got lost. The difference is the fifteen minutes you spend in the parking lot agreeing the rules. Spend it. Your future self, parked at a fork in the dark waiting for the sweep, will thank you.

A Real Convoy Failure (and the Fix)

On a five-car trip a few years back, we lost a car at a fuel stop when the lead assumed everyone would follow and the sweep assumed the lead had waited. The missing car sat at the pump for twenty minutes while the rest of us wondered where the gap came from. The fix was dull: we pulled the sweep off at the next lay-by, the lead came back, and we agreed, aloud, that “the sweep waits, the lead does not move without the sweep’s confirm.” We never lost a car again. The lesson is that convoy discipline is not about heroics; it is about removing the moment where everyone assumes someone else is handling it.

Write the rules on a card and photograph them in the group chat. Sounds silly until the first long day, when fatigue erodes memory and the card settles the argument.

What Each Car Should Carry

Beyond the per-car essentials, a convoy should distribute capacity. One car carries the big first-aid kit. One carries the spare water. One carries the air compressor for slow leaks. Spread it so no single breakdown strands the group’s only resource. I have been the car with the compressor when another’s tire went soft on a washboard section, and the ten minutes we saved by not backtracking to town was the difference between making the night’s lodging and not.

A paper map in each car, not just the leader’s. The offline-maps guide covers the digital side, but a paper map is the backup that never runs out of battery, and in a convoy where cars separate, each needs its own way home.

The Human Element

The hardest part of a convoy is not the road; it is the people. Different drivers have different tolerances for early starts, long days, and roadside stops. Agree a daily plan each morning, with a hard end time, so the keen ones and the cautious ones share the day instead of resenting it. I have watched a trip sour because one driver pushed the pace and another seethed; a five-minute conversation at breakfast prevents a week of friction.

Also: let people opt out of a segment. If one car wants the long scenic detour and another wants the direct road, split and meet at the hotel. The convoy is a tool, not a contract. The rental guide matters here because each car needs a legal driver, and a flexible plan needs flexible drivers.

When to Abandon the Convoy Idea

If your group cannot agree the basic rules in the lot, do not drive as a convoy. Drive separately and meet at the evening stop. A loose group of independent cars is safer and happier than a chaotic convoy where nobody is sure who is responsible for whom. The discipline is the point; without it, you have invented new ways to get separated and annoyed.

Done right, though, the convoy is the best version of Xinjiang driving: shared watch, shared cost, shared story. The breakdown guide and the checkpoint guide are the two references every driver should have open before the first kilometer. Read them as a group. Argue about the rules now, not at the fork in the dark.

Radios and the Cheap Setup

You do not need expensive kit to convoy well. A pair of basic walkie-talkies, the kind you can buy in any Chinese electronics market for under a hundred yuan, turns three silent cars into one talking group. Set a channel, agree a call sign per car, and use it for the dull stuff: fuel stop in two k, gate ahead, slow down. I drove a three-car convoy across the north with radios bought the morning we left, and the difference from the silent follow-the-taillights version was huge. The lead car saw the checkpoint and warned the rest; the last car spotted a low tire and said so; nobody got separated at the one confusing junction. The radios paid for themselves at the first fuel stop.

Phones work too, on speaker, but the battery tax over a long day and the dead zones in the mountains make radios the steadier choice. Bring both, trust the radio, and keep the phone for the moments the radio cannot reach.

The last rule is the easiest to forget: convoy ends at the hotel. Agree where you stop, and stop together, because the group that scatters at the fuel pump and reassembles by luck is not a convoy, just three cars that happen to know each other. Eat as a table, plan as a table, and the road bonds instead of fraying. Do that and the long empty between Xinjiang’s famous sites becomes the part of the trip you tell people about first.