Motorway Services Online

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Trunk road service area

Tiverton services.
A traditional TRSA building.

A trunk road service area (TRSA), formerly known as a major road service area (MRSA, not to be mixed up with MSA or MRA, or even the other MRSA), is a facility located along a trunk road (major road).

There is no particular format to a TRSA: some are bigger than the motorway sites, while others consist of just a few petrol pumps. Most TRSAs used to avoid the variety of brand names seen on the motorway, but now it's becoming common to find several brand names stuffed inside a small shop.

Motorway Services Online lists every TRSA that is known to have official signage, in addition to a few other sites we frequently receive questions about.


The term "TRSA" was first used by the Highways Agency in 2008, who used it to refer to "signed service areas on all-purpose trunk roads". This means motorway services do not count as motorways are not all-purpose roads, but it also means services on local roads don't count because local roads are non-trunk. As there are so few examples, if any, in the latter category, this tends to get overlooked.

Secondly, as it was the Highways Agency's phrase and the Highways Agency only had jurisdiction in England, there is no expectation that the other UK authorities should use that term. In Ireland, trunk roads are known as "national roads". To keep things simple, we tend to bring all of these under the TRSA banner.

To further complicate matters, in 2013 as part of their crackdown on technical terms, the Highways Agency used the phrase "APTR service area" - a re-wording that's more of a mouthful.

"TRSA" and all its variants is a technical term which applies only to services which are officially recognised by the Secretary of State because they have official road signs. Anything else is just a facility, no matter how much it may look like a TRSA.

Facilities and Regulations

Totem poles.
Picking apart the different facilities can be difficult.

As set out in Circular 02/2013, TRSAs must provide at least:

  • Fuel
  • Hot drinks and hot food
  • Indoor seating
  • Two hours free parking
  • Free toilets and baby-changing facilities

Every day from 8am to 8pm, except for Christmas Day, Boxing Day and New Year's Day. A TRSA is limited to two adjoining premises, however when you have a number of buildings sharing the same site it can be difficult to describe which ones are part of TRSA and which are just a hotel which happens to be built next door.

This causes two issues: firstly, while TRSAs have to provide free parking and free toilets, there is nothing stopping them causing confusion by also providing paid parking and customer-only toilets. Secondly, in order to receive official signs the owner has to enter an agreement with the Secretary of State, but the motorist has no way of knowing which owner has entered the agreement: is it the building on the left or the right?

The 2013 policy was a significant relaxation of the previous 2008 regulations, which had prevented a TRSA from doubling-up as any other facility. Now they were allowed to provide virtually anything.


TRSAs are not allowed in urban areas as it is thought that adequate facilities would already be available. This applies to any road with a speed limit of 40mph or less.

Outside of urban areas, TRSAs should be at least 14 miles or 30 minutes (whichever is the lesser) apart, unless similar unsigned facilities are already available. Where a site is located on one side of the road it will only be signed from the other side where adequate provision for traffic has been made.

Like MSAs it's up to the developer to find a suitable site for the TRSA, but Highways England are encouraged to find stretches of roads which could benefit from a new service area. This is sometimes achieved as part of a route management study (RMS), where Highways England look at the performance of a particular road. In 2010 the old Highways Agency published a review of all trunk road facilities, and made suggestions for some of them to be upgraded or signposted.

Unlike with MSAs, the government have historically tried to have as little influence as possible on TRSA designs, preferring the work which private developers had already done.


Pre-Worboys road sign.
The Wetherby Bypass (opened 1959) had a sign advertising the "services" available in the town.

Until the motorway network began to be developed, it had always been a given that roads would have restaurants, hotels and petrol stations along them wherever they were required. Even when a new road was built, entrepreneurs would quickly open businesses there, like at Kings Worthy - which was probably the first service station as we would recognise it today.

The motorways were different. Motorway regulations prevented businesses from opening up alongside them, and instead service stations had to be sanctioned by the government. With the motorway service area operators fighting over contracts, Fortes realised they would have an easier time building on A-roads, where they could get their name out there without the hassle of government regulation.

This gave us sites such as Oxford Peartree, Barnsdale Bar and Grantham North. Granada later joined in with the likes of Saltash and Musselburgh, and most recently Extra tried.

There was lots of experimentation during this early motoring era. At Wetherby, a sign advertised the "services" available in the town - not a service area as we would recognise it but the start of people becoming familiar with the concept. Elsewhere some of these new A-road developments had large motorway-style signs pointing towards them.

In 1982 a green sign was created for A-road services.

Little Chef Impact

By the late 1970s, Little Chef and the rivals it had inspired were growing at a phenomenal rate. Ancient inns and cafés across the country's A-road network were being offered large amounts of money to sell up and the chains had the UK covered.

There appeared to be no consistency with Little Chef. Big or small, old or new, a range of facilities or just one. But by being everywhere they did bring some consistency to the disorganised facilities on A-roads, and by the 1990s Little Chef were rolling out a format of sites which resembled a small motorway service area.

As motorway sites started to have their large restaurants pulled out, Little Chef hung on in there, keeping the A-roads looking different. In 2018 the final remaining Little Chefs started to be replaced with coffee shops and fast food outlets.

Motorway By Stealth

Restaurant building.
Was Markfield patiently waiting for people to find it?

Arch rivals Granada and Forte discovered a trick where they would build a TRSA at the junction of an A-road and a motorway, thereby being able to serve a motorway while avoiding the difficult motorway regulations. Sometimes they would hope just being there would attract traffic, while other times they would beg for motorway signs.

Markfield and Tiverton are examples of the former while Chieveley and Pease Pottage are examples of the latter.

By 2010, sat navs and websites like Motorway Services Online have encouraged some developers to not bother applying for motorway signs and to instead rely on word of mouth, causing the "motorway by stealth" trick to return. New examples such as Glews, Markham Vale and Frontier Park aren't TRSAs because they both aren't on an all-purpose trunk road and they don't have any official signs, but they do look very similar.

Services By Convenience

The three examples above ought to come under this category.

Official signs placed on roads aren't allowed to use brand names like "Costa". As a result, some councils will use a sign saying "Services" because they can't think of any other word to describe the combination of a restaurant, car park and petrol station. This means "Services" signs can crop up in strange places, like the car park at Gatwick Airport.

In order to count as an official service area, the owner has to have entered into an agreement which has allowed signs to Diagram 2313.1 (the one with symbols) to be installed. Just having the word "Services" and an arrow doesn't count, as those ones aren't regulated in the same way.

Upgrading and Closing

Closed building.
Rainton waits for the A1(M)'s bulldozers.

When a trunk road is upgraded to a motorway, TRSAs are usually compulsory purchased and demolished. Occasionally the government (pre-1992) or a developer (post-1992) will argue that the new road needs a service area, and if possible a new MSA will be set up in roughly the same place, which is what happened at Gretna Green.

In 2008 a section of the A74 was upgraded to M6, narrowly avoiding Todhills. Although no case was made for it to become a motorway service area, it was agreed that it could become the first of a new generation of rest areas.

Sometimes a road will be realigned as traffic levels change, with the new road avoiding an existing TRSA. Where this happens the owner will try to see signs from the new road pointing to their site, but if for whatever reason this can't happen, they can apply for compensation.

On the other hand, as TRSAs are less regulated than MSAs, it isn't uncommon for new companies to drop in and out. If a TRSA completely closes, their exit will be closed off and any plans to use the site for something else will normally be rejected.

Road Signs

Since 2002 TRSA signs have been in black-on-white, and are explained in detail on the A-road Signs page.

Before then the signs were all in white-on-green.