TREK/wiki/Road-Trip.md

Road Trip

Road trip mode plans a trip as one continuous drive. The same days and the same places you plan under Days are read as a chain of stops with the driving between them: how far each leg is, how long it takes, when you arrive and when you set off again. Change a stay, pin a time or move a stop, and every arrival after it moves with it.

It is a second way of looking at a trip, not a second trip. Nothing is copied: switch back to Days and the plan is where you left it.

Admin: Enable the Road trip addon in Admin → Addons. It is listed under Trip and is off by default. It needs no key and no account: routing runs on the public OpenStreetMap routing servers until you point it at your own, see Routing engines. See Admin-Addons.

What it does

• Shows the whole drive. Trip distance, driving time and stop count at the top, then one card per day with every leg and every arrival.
• Keeps your times. A time you pin on a stop is never moved. The schedule is worked out forwards and backwards from it, and a stop you would reach late says by how much.
• Knows how long you stay. Each stop carries its own stay, up to a full day, and a stay that runs past midnight carries the drive into the next morning.
• Caps a day. Daily travel times end each day at the hour you choose, along the route or at the last place, and the rest of the drive continues on extra calculated days.
• Watches your limits. The longest drive in one go, the driving per day, and the range on one tank or charge. Legs and days over them are marked, and so is the point where the tank runs dry.
• Searches along the road you actually drive for fuel, charging, rest areas, campsites, accommodation, food and sights, within 2, 5 or 10 km of it.
• Lets you shape the route with via points, offers Other ways to drive a leg, and avoids toll roads, motorways and ferries where possible.
• Follows a scenic route from an imported GPX or KML track.
• Shows weather warnings and disaster alerts on the map when you ask for them. They never change the route.
• Works on the phone as its own Road trip tab, and through MCP without an open browser.

Switching to Road trip

With the addon on, a Days / Road trip switch sits at the top of the planner's left column on the desktop. The choice is remembered per trip for as long as the browser tab stays open.

In Road trip the planner changes shape:

Where	Days	Road trip
Left column	the day plan	the drive: a summary of Distance, Driving time and Stops, then one card per day
Map	the selected day	every day of the trip. Fold on a day card takes that day off the map as well
Right column	the places list	Along the route (the search, see below) and the Driving settings card

The map's category pills still work, so you can look around what is in view as well as along the drive; a place both searches find is drawn once. Show whole trip is not offered, because this view already draws the whole trip.

The drive is built from the places planned on each day. Plan the places the trip is for under Days as usual, or import them (see Importing a Google Maps route). A day is routed once it has two places with coordinates; a day with fewer shows an empty card you can drop a stop onto, and a place without coordinates is left out of the drive. In the rail, drag a stop to reorder its day or to move it to another day, or focus it with the keyboard and press Alt with the up or down arrow.

While the legs are still being routed, the summary says Still working out the rest of the drive, because until then every total is a partial sum.

A day card

The header of each card carries the day's number, its date, its driving (for example 412 km in 5 h 10 min) and its number of stops. It also shows how far the day runs over your driving limit, which road classes it could not avoid, and a Track badge for following a track.

Below it, the day is a chain:

• Numbered stops are the places the day is for. The numbers match the markers on the map.
• Stops on the way (fuel, charging, a rest area and the other kinds below) sit on the dashed line with the icon of their kind instead of a number. They are not counted as stops, so a day with a charger between four places is still a four-stop day.
• Drive bands between the stops show each leg as distance and time. Click one for Other ways.
• Arrival times stand at the right edge. A time you set is printed a little stronger than one worked out from the drive; hover one to see which it is (Time you set or Calculated from the drive). A small +1 means the next day.
• A stop the road does not quite reach, such as a viewpoint up a footpath, shows the gap as a dashed spur on the map, and the rail prints {distance} from the road once it is 250 m or more.
• A charging or rest halt a routing plugin adds to a leg is listed as Stop on the way. It is the plugin's, so it is shown but cannot be edited.

A stop reached after midnight moves to the card of the day it is reached on, under a From day n band that names the day it came from and when the drive left. Nothing is written for this: the stop still belongs to the day you planned it on, and a shorter stay the evening before puts it back.

Stops on the way

Any stop can be a destination, the numbered kind, or a stop on the way. The kinds are:

Kind of stop	Stay it starts with	Notes
Fuel	10 min	Refills the range, unless the vehicle is set to Electric.
Charging	30 min	Refills the range, unless the vehicle is set to Petrol. Shows availability and tariffs.
Rest area	20 min
Campsite	60 min	Can also be booked as a night.
Accommodation	30 min	Added from the search as a night by default, see Booked nights on the drive.
Food	45 min
Sights	30 min

The stay is only a starting point. Change it on the stop, see How long you stay.

• Make it a stop on the way: click the number of a numbered stop and pick a kind. The number turns into the kind's icon and the stops below it are renumbered.
• Change what kind of stop this is: click the icon of a stop on the way. Back to a destination gives it its number again.
• A fuel or charging stop that refills your vehicle carries a fill badge (see Driving limits and range). Click it to set how full this particular stop fills, or Use my default.

Stops on the way also show under Days and on the day's route there. To keep them in Road trip only, switch off Show in Days too under Service stops in the Driving settings. The switch is on by default, belongs to the trip, and applies to every stop on the way, including existing ones. A stop that a booked night put on the drive is always hidden under Days, whatever the switch says, because the day already shows that booking.

Adding a stop from the search

Add on a search result opens Add as a stop. It says where the stop lands, for example Day 2, as stop 4: at the point of the day where the drive really passes it. It warns when the same place is already on the trip. Pick the Kind of stop and the Time at this stop (5, 10, 20, 30, 45 or 60 minutes), then Add. More details opens the full place form instead.

For accommodation and campsites the dialog asks Pause or Overnight. Accommodation starts on Overnight (its button in the result list already reads Add as an overnight stay), a campsite on Pause. An overnight stay asks only for the Check-in time, prefilled from the calculated arrival, and shows the place's website and phone where known. Find accommodation opens trivago and CHECK24 for a hotel, or PiNCAMP and Pitchup for a campsite, in a new tab, with the place and your dates where the portal accepts them. Nothing is booked and no stop is added by opening a portal. CHECK24 needs a manual search.

How long you stay

Every stop has a Stay badge. Click it to open Time at this stop:

• The length is the big number in the middle. Set it with the slider, the minus and plus buttons (5 minutes at a time), or one of the presets from 15 minutes to 12 hours. The slider reaches a full day.
• Below it, Arrive and Leave show what the stay does to the day while you change it.
• No stay clears it.

The stay belongs to the place, not to one visit. A place planned on two days has the same stay on both.

A stay may run past midnight. The clock carries into the next morning together with the drive from there, and the next stop moves to the card of the day it is actually reached on. With daily travel times set, the hours between one day's end time and the next day's start time count towards the stay, so a twelve hour night that begins at 20:00 is over at 08:00 the next morning.

A booked night is answered the same way: its length is its stay. The drive never reads a check-out, because a check-out is the latest the room has to be handed back, not the time anybody drives on. The booking keeps its check-out as a booking detail under Days.

Leaving at a set time

A visit's End is the time the drive leaves it. Set it in the place form, where the End field says so in Road trip mode: On the road trip, the drive leaves at this time.

• The stop is stood at from whenever the drive gets there until that time. Its Stay badge shows the stay that results together with the time, for example 2 h until 14:00. That length is worked out, never written into the place, so it is right again the moment an arrival moves.
• If the drive gets there after the End, the badge warns Arrives 25 min after the time you set to leave, and the drive leaves on arrival.
• If the daily travel times close the day before the End comes, the stop is where that day ends: The travel day ends before 14:00, so the drive goes on the next morning.
• Clicking the Stay badge of such a stop opens the End instead of the slider, with Remove end time. After that the stay is yours to choose again. The button is missing when you may not edit the stop, and when the End is stored on the place itself and another visit of the same place relies on it: removing it there would change that visit too.

The End belongs to one visit; the stay belongs to the place. Older trips can carry an End on the place, which then applies to its visits that have none of their own.

Pinned times and the schedule

Give a visit a Start in the place form and the chain restarts from it. That time is never moved.

• With nothing to count from (no pinned time, no check-in and no daily travel times), the rail shows driving times but no clock times.
• The schedule works backwards too. Pin 10:00 on the second stop and the first one says when to set off, worked out from the drive and the stay. It stops at a leg that has not routed rather than inventing a duration.
• A stop reached later than the time you set says so: Arrives 15 min after the time you set. The same warning appears on a fuel or charging halt that carries a time.
• The Check-in of a booked night is not an appointment. Arriving before it means waiting for it, and it starts the day when nothing before it decides the hour. Arriving after it is simply arriving.

Daily travel times and day endings

In Driving settings → Daily travel times, set a Day start time and a Day end time. Both are needed; clear either to turn the feature off. Manual times take priority.

Driving then stops at the end time and continues from the same point at the next day's start time. How the day ends is chosen under End the day:

Choice	What happens
Along the route (default)	The day pauses on the road wherever the drive has got to at the end time.
At the last place	The day stops at the last place before the next drive would pass the end time. A drive too long for any single day asks you to add a place along the way or to pause along the route.

• Whatever does not fit continues on extra calculated days, beyond the trip's own days if needed. These are arranged for the road trip view only; your days and their places are not changed.
• The rail shows each ending as an End of day row with Show on map. The map marks it with a moon and the day number, hidden once you zoom out below level 6.
• End the day here, in a stop's place details, ends the day after that visit and its stay even before the end time. It belongs to that one visit.
• While online you can drag an end-of-day marker on the map along the route or onto a visit. Right-click it to restore the automatic ending, or use Restore automatic day endings in the Driving settings. A focused marker also takes the arrow keys and Delete.
• If a time you pinned cannot be reached together with the daily breaks, the planner says so and pauses automatic scheduling rather than moving your time.
• Turning daily travel times off keeps every End the day here and every dragged ending, but stops applying them until the times are back.
• With daily travel times set, the days are always connected: the drive from one day's last stop to the next day's first is routed and counted.

Driving settings

The Driving settings card sits under the search in the right column. Its badges show what is set without opening it. The settings belong to the trip, so everyone on it plans with the same car, the same limits and the same daily times. Changing them needs the permission Edit days, notes & assignments (see Admin-Permissions). Trips that existed before took their owner's earlier values once.

Section	Settings
Driving	Longest drive at once, Driving per day, both in minutes. Empty means off.
Daily travel times	Day start time, Day end time, End the day, Restore automatic day endings
Avoid where possible	Toll roads, Motorways, Ferries
Service stops	Show in Days too
Vehicle	What you drive (Either, Petrol, Electric), the range, Fill up to, and Work it out from the car
Route line	Connect the days, A colour per day
Current warnings	Show hazard areas

Connect the days routes the drive from one day's last stop to the next day's first and counts it towards the day it arrives on. It is off by default, and always on while daily travel times are set. A colour per day draws each day in its own colour and tints its card to match.

Driving limits and range

All three limits are yours to set, and nothing is assumed about the vehicle: with no limit set, nothing is flagged.

• Longest drive at once: a leg over it gets a warning badge, 1 h 10 min over your longest drive.
• Driving per day: a day over it says so in its header. Both limits count driving only, not stays and not overnight legs.
• Range on one tank (or Range on one charge for an electric car), in your distance unit. Instead of typing it, open Work it out from the car and enter Tank size and Consumption, or for an electric car Battery, Consumption and Battery wear. Once those add up, the range is worked out from them and cannot be typed over.
• Fill up to says how full a stop fills, because nobody charges to 100 % on the road. Each fuel or charging stop can override it.

The range counts from the last fuel or charging stop, across days. What you drive decides which stops count: Petrol refills only at fuel stops, Electric only at charging stops, Either at both.

Where the range runs out, the rail draws a band across the leg: Tank runs out here or Battery runs out here, after 64 km. Find fuel or Find charging searches the road before that point and offers up to three stations the car can still reach, keeping 10 km in reserve and counting the detour twice. Each shows how much range it leaves to spare, and Add {name} as a fuel stop (or as a charging stop) puts it on the right leg. This works across day boundaries too, and needs a connection.

Search along the route

The Along the route panel searches the road actually driven, not the straight line between stops. That is the difference between one petrol station and forty.

1. Pick the Day at the top of the panel.
2. Under Looking for, pick one or more of Fuel, Charging, Rest area, Campsite, Accommodation, Food and Sights. It opens on Charging when the trip's vehicle is electric, and on Fuel otherwise.
3. Under Within, pick 2, 5 or 10 km either side of the road.
4. Press Search.

Results are grouped by kind and listed in the order you pass them, each with how far along the day it is (after 120 km) and how far off the route. Click a result to bring it into view on the map, which is how you tell which side of the road it is on. Add puts it on the drive, see Adding a stop from the search.

To narrow the results afterwards:

• Filter by name, for example a brand.
• Limit the list to one stretch: The whole day, around one stop, or around the middle of a leg (Halfway, Lyon to Avignon), within 25, 50 or 100 km. A break on a five hour drive belongs in the middle of it.
• For charging: Any plug or one plug family, and Any power or a minimum of 11, 22, 50 or 150 kW. These filters work where OpenStreetMap states them. A station that states neither stays in the list, because most stations state no power at all.

Clear results empties the list, its pins on the map and the filters.

The search asks TREK's place index and OpenStreetMap, and any installed place-search plugin, whose hits show their source. A source that fails is named beside the results that did arrive, and a search cut short says so rather than claiming the stretch was checked. The search only runs when you press Search, and needs a connection.

Add manually

The search does not know every charger or pump: a good share of the chargers at a motorway junction are missing from OpenStreetMap. Add manually, beside Search, is for those.

• Look the place up by name.
• TREK works out which leg of which day it belongs on, measured against the drawn route. Add between lists every leg of every routed day, if the guess is wrong.
• A place well away from the route is accepted, with a note: 12 km from the route, so check which leg it belongs on.
• The dialog opens on the kind you are searching for, with that kind's usual stay.

Charger availability and tariffs

A charging stop shows how many connectors are free and the published price, compactly in the rail and in full in its place details, with the source, the time of the data and the tariff conditions. The same panel appears in Add as a stop when the kind is Charging, so you can read it before the stop exists.

The data comes from the public MobiData BW OCPDB, which aggregates participating operators, without a key or an account. Coverage varies by region and operator. No reliable data available and Status outdated mean exactly that; neither means the charger is free. The prices are Published tariffs, not what your own charging card pays. The data is refreshed every minute while it is shown and is not available offline.

Via points

A via point bends a day's drive without adding a stop: no number, no stay, no arrival.

• Click the route on the map to drop one. It is attached to the leg you clicked, between the two stops it lies between.
• Drag it to move it. The route is redrawn through the new spot.
• Right-click it to remove it, and the leg drives the direct way again.

The handles show once you zoom in far enough to aim at a road (zoom level 9). A via remembers which stop it follows, so reordering a day re-pins it instead of letting the drive snap back. Placing and moving vias needs the permission Edit days, notes & assignments and a connection; without either, the route cannot be clicked and the handles cannot be moved.

Other ways and avoidance

Click a drive band in the rail to see Ways to drive this leg. TREK asks the router for alternatives and lists them: the Fastest, how much slower or quicker each other one is, and on a leg you already reshaped, the road you are on as Current. Hover an entry to light it up on the map, click it to drive that way. Choosing a different road places a via on the leg, replacing any the leg already had; choosing the router's own road removes them.

The list can also offer No motorway, No tolls and No ferry. These come from the second routing engine (see below), which prices roads with its own speed model, so they are marked Timed by the avoidance router, not the main one and are not compared with the others. When the router knows only one way, the list says Only one sensible way to drive this one.

To avoid road classes for the whole trip, switch them on under Avoid where possible in the Driving settings: Toll roads, Motorways, Ferries. This is a preference, not a ban. A day with no way round still uses the road, and says so in its header (Toll roads unavoidable) instead of pretending. Days that could avoid what was asked still do.

When the instance has its own OSRM but no Valhalla, the switches are unavailable and say Your routing provider does not support avoidance.

Routing engines

Routing needs two engines, and both have public defaults, so the addon works without any setup:

Engine	Used for	Public default	Own instance
OSRM	every road route TREK draws: the road trip, the day plan, the routed booking lines	the FOSSGIS servers at routing.openstreetmap.de	Own routing engine
Valhalla	driving around toll roads, motorways and ferries, and the No motorway, No tolls and No ferry offers	the FOSSGIS Valhalla at valhalla1.openstreetmap.de	Own Valhalla instance

The public OSRM servers allow roughly one request a second. That is enough for a day plan and tight for a road trip, which routes every leg of every day: TREK spaces its requests and retries a refused one, but a long trip takes a while to fill in. An instance with many road trippers is better off with its own.

Admin: Set your own engines under Admin → User Defaults, in the Map section, on the desktop or the phone: Own routing engine for OSRM, Own Valhalla instance for Valhalla. A value saves when you leave the field, and reset restores the public default. Then restart the server and reload the page. Only an admin can set them; they apply to everyone.

Why a restart: routes are calculated in the browser, and the browser only talks to addresses the server names in its security policy, which it builds once at start. An address the policy does not name is blocked by the browser without an error TREK could report.

What the combinations do:

Own routing engine	Own Valhalla instance	Result
empty	empty	Public OSRM for routes, public Valhalla for avoidance.
set	empty	Your OSRM for routes. The public Valhalla is not used, because an instance that runs its own router has chosen against public hosts. The avoid switches are unavailable, and Other ways can still offer routes without motorways or tolls if your OSRM supports excluding them.
empty or set	set	Your Valhalla for avoidance.

Requirements for your own instances:

• OSRM must serve the standard layout, <address>/route/v1/<profile>/…, which osrm-routed does out of the box. It answers every route in TREK, not only road trips. The public servers refuse to exclude road classes; an OSRM of your own built through the MLD pipeline, with a profile that has those classes, can answer No motorway and No tolls in Other ways by itself.
• Reachable from the browser. The browser calls the engine directly, so the address has to work from the devices your travellers plan on, not only from the TREK server. http://localhost:5000 means the traveller's own computer to a browser. When TREK is served over HTTPS, the engine has to be HTTPS too, or the browser blocks it as mixed content.
• Reachable from the TREK server for the MCP tools, which calculate on the server. An address on your local network is accepted there without ALLOW_INTERNAL_NETWORK, because only an admin can set it.

There is no environment variable for either engine. See also Admin-Panel-Overview and Route-Optimization.

Following a GPX or KML track

Scenic routes are usually published as a track. A day can follow one that is already imported into the trip:

1. Import the file under Days with Import file in the places panel, with its tracks (GPX) or paths (KML) selected. See Places-and-Search.
2. In Road trip, click the Track badge in the day's header.
3. Pick the track. The list shows each track's colour, length and how far it lies from this day, nearest first.
4. Press Follow this track.

TREK then places via points where the road strays furthest from the track and routes again, round after round, until the drive is close enough. It reports the result: 6 via points placed. The drive stays within 300 m of the track. Via points already on those legs are replaced. On the public routing servers this can take half a minute for a long route.

The badge is then tinted, and its tooltip names the track the day follows. Drop n via points in the same dialog undoes it.

Weather warnings and disaster alerts

Switch on Show hazard areas under Current warnings in the Driving settings. It is off by default and shared by the trip.

• DWD weather warnings cover Germany. GDACS reports disasters worldwide; up to twelve flood, wildfire or cyclone events are drawn with their affected area.
• Click an area or an event for the source report and when it was last updated, and for GDACS its alert score. An event given only as a point says Location only; affected area unknown.
• The feeds are refreshed every ten minutes, and a source that is incomplete or unreachable is labelled as such. Offline, live warnings are unavailable.
• Warnings are not road closures. Routes stay unchanged. They are current notices, not forecasts for your travel dates, and the coverage is not exhaustive.

Booked nights on the drive

A night booked anywhere, whether in the day panel, the booking form, on the phone, in Road trip, through MCP or by a plugin, puts its place on the check-in day as an Accommodation stop on the way. The hotel is on the drive without being entered twice.

• Days shows the night in the day header as always, and hides the stop so the hotel is not listed twice.
• Moving the booking to another day moves its stop along; deleting the booking removes the stop it created. A stop you placed yourself is left standing.
• The drive uses the booking's Check-in as the earliest arrival and the place's stay as its length. The check-out stays a booking detail.
• Add as an overnight stay from the search books the night and adds the stop in one go. The night runs to the next day; change the dates under Days. On the phone, booking a night works in the desktop planner only.

See Accommodations for the details.

Car bookings with stops

A Car booking can carry the stops of its drive between pick-up and return, the way a flight carries its layovers. In the booking form, Stops along the way lists them, each with a place and a time; Add stop adds one and the arrows put them in order. The booking's line on the map runs through them in that order. This works on the desktop and on the phone, and does not need the addon. See Transport-Flights-Trains-Cars.

Importing a Google Maps route

A route planned in Google Maps can become the stops of a day:

1. In Road trip, open the … menu next to the day picker in Along the route and choose Import Google Maps route.
2. Paste the directions link. Long links, short maps.app.goo.gl links and Google's URL-builder links work. The link needs 2 to 30 stops.
3. Check the stops in the preview and choose the Day. A stop TREK could not place is marked Location unresolved; this stop will be skipped.
4. Import. The stops are appended to that day in their order.

TREK calculates its own route between them; Google's road is not copied. The import needs a connection and permission to edit both places and days. The List Import button in the places panel under Days (it reads Google List when Google is the only list source) accepts the same kind of link.

On the phone

On a phone the addon adds a Road trip tab next to Plan. The tab bar holds five sections, so with the other trip addons on, the lists tab moves into More while the road trip addon is on, and comes back when it is off. A desktop window made narrower than 768 px switches to this phone layout too.

The tab shows the open day as a chain: where it starts and where it ends, each stop with its stay, the times you set next to the ones worked out, the band where the tank or battery runs out, and the stops a night drive carries into the next morning. On the day you are actually driving, Up Next is measured against the clock, with a countdown that turns into 15 min behind plan once the planned time has passed. The map half of the tab draws that day alone.

• Tap a stop for a sheet that writes out what the badges mean, with navigation, a longer or shorter stay, and End the day here.
• Tap a stop's number or icon to change its kind, the same seven kinds as on the desktop.
• Tap a leg for other ways to drive it. They light up on the map before anything is saved.
• Search along the drive is two choices: what you are Looking for, and How far, either 50 km ahead or The whole day. On the day you are driving, ahead starts at your next stop; otherwise it starts at the beginning of the day. Fuel and charging offers show the detour and the range they leave, with a button that puts one on the day. Search needs a connection.

Planning is done on the desktop: the Driving settings, reordering and deleting stops, following a track and booking a night. The phone reads the plan and handles what a passenger decides on the road.

MCP tools

With the MCP addon on as well, an assistant can plan and check a road trip without an open browser. The server uses the same scheduling, range and day-ending rules as the planner. The road trip tools exist only while the addon is on (set_assignment_end_day and import_trip_gpx are general tools and always there), and each write needs the same permission as in the browser.

Tool	What it does	Scope
get_roadtrip_context	Reads the saved days, visits, pinned times, End times, stays, kinds of stop, vias, followed tracks and day endings.	trips:read
calculate_roadtrip	Works out arrivals, departures, day splits, driving limit and range warnings. Missing coordinates and routing failures are reported, not hidden.	trips:read
get_roadtrip_settings, update_roadtrip_settings	Read or change the trip's shared driving settings.	trips:read, trips:write
search_roadtrip_corridor	Searches along a calculated day, with the same kinds, filters and sources as the panel. It never adds anything.	trips:read
list_route_vias, add_route_via, add_route_vias, update_route_via, reanchor_route_vias, remove_route_via	List, add, move, re-pin and remove via points.	trips:read, trips:write
list_day_boundaries, set_day_boundary	Read or set dragged day endings.	trips:read, trips:write
set_assignment_end_day	End the day here for one visit.	places:write
get_roadtrip_hazards	Reads the current DWD and GDACS notices.	trips:read
get_roadtrip_charging_info, lookup_roadtrip_charging_info	Availability and published tariffs, for a charging stop on the trip or for any station by position.	trips:read
preview_google_maps_route, import_google_maps_route	Reads a Google Maps directions link, then appends the reviewed stops to a day.	trips:read, places:write
import_trip_gpx	Imports a GPX file's waypoints, routes and tracks into the trip.	places:write

Units, limits and the exact fields are on MCP-Addon-Tools. See also MCP-Scopes.

What needs a connection

Road trip planning is online. Routing, the search along the route, via points, dragging day endings, Find fuel, charger data, hazard areas and the Google Maps import all need a connection, and the controls say so rather than accepting a change they cannot send.

What TREK contacts, and from where:

Service	Asked by	When	To change it
OSRM (routing.openstreetmap.de by default)	the browser, and the TREK server for MCP	every route	Own routing engine
Valhalla (valhalla1.openstreetmap.de by default)	the browser, and the TREK server for MCP	only when avoiding road classes or offering No motorway, No tolls, No ferry	Own Valhalla instance, or not at all once only Own routing engine is set
TREK's place index and OpenStreetMap	the TREK server	the search along the route (OpenStreetMap through Overpass), and the place lookups of Add manually and the Google import (the usual place search)	see TREK-Places-API and Places-and-Search, and OVERPASS_URL and NOMINATIM_URL in Environment-Variables
MobiData BW OCPDB	the TREK server	when a charging stop's data is shown
DWD and GDACS	the TREK server	only with Show hazard areas on	switch it off
Google short links (maps.app.goo.gl)	the TREK server	only to unfold a short link during the Google import

Troubleshooting

What you see	What it usually means
No Days / Road trip switch	The addon is off. An admin enables it in Admin → Addons. On a phone, look for the Road trip tab instead.
No route yet	The trip has no days with places yet. Add places under Days, or give a place its coordinates.
No route on a leg	The routing server did not answer that leg: usually the public servers' limit of about one request a second, sometimes a place the road network cannot reach. TREK retries and asks a refused day one leg at a time; reload later, or set your own engine.
Still working out the rest of the drive for a long time	A long trip on the public routing servers. Every leg is a request, spaced a second apart.
Daily breaks cannot be calculated until all connecting routes are available.	A leg is missing. The day endings appear once every leg has routed.
A fixed time conflicts with the drive and daily breaks.	A time you pinned cannot be reached with the daily travel times. Your time is kept; move it, or change the daily times.
A drive exceeds the daily travel window.	With At the last place, one leg is longer than a whole travel day. Add a place along the way, or choose Along the route.
A stop you pinned or gave an End shows a late warning	The drive cannot get there in time. The warning says by how many minutes.
Toll roads unavoidable (or motorways, ferries) on a day	There is no way round on that day. The day uses the road; the other days still avoid it.
Your routing provider does not support avoidance.	Your own OSRM is set without a Valhalla. Set Own Valhalla instance too.
Routes stay straight lines after setting your own engine	The server was not restarted, the page was not reloaded, or the browser cannot reach the address (see Routing engines). The browser's developer console shows the blocked request.
The search finds nothing where you know there is a charger	It is probably missing from the open data the search reads. Use Add manually.
The place search is not answering right now. or stretches that could not be searched	The place index or the OpenStreetMap mirrors did not answer. Search again, or narrow the stretch.
Use a Google Maps directions link.	The link is not a Google Maps directions link, for example a single place.
The link must contain between 2 and 30 readable stops.	Too few or too many stops in the link. Split a longer route into days.
Via handles do not appear or do not move	Zoom in further. Otherwise you are offline, or you may not edit days on this trip.

See also

• Accommodations: how a booked night becomes a stop on the drive
• Route Optimization: route modes and the day plan's routing
• Map Features: the planner map
• Places and Search: importing GPX and KML files and Google Maps lists
• Transport: Flights, Trains, Cars: car bookings with stops
• MCP Addon Tools: the road trip tools in detail
• Admin: Addons: switching the addon on
• Addons Overview: the full addon table