Are there any restrictions on that route? Can I go via London?

You are travelling in Britain...and decide to take the train. You are asking for train information. Sometimes tickets have restrictions. This means that you can't travel via / through a particular place. If you buy a ticket from Bangor (North Wales) to Brighton, for example, you want the cheapest one, right? With the cheapest ticket you will probably not be able to go through London. A ticket from Edinburgh to Brighton via London will probably cost you more money. Via London means going through London. If you travel on a more expensive route than the one you have paid for, you'll probably have to pay a fine. (Fine = a financial penalty / punishment.) This sentence is an example of tourism, tourism, public transport, public transport, public transport, public transport, information on britain.