Before setting off on a holiday or business trip, it is always worth checking the routes are you going to be taking and any other means of transport for delays or cancellations.
If you are travelling by plane for example, you should always look on the airlines website to check if the flight is still scheduled correctly and forecast on time. If you do not have access to the internet you can either call them or contact the agent you booked the holiday through who should be able to do this on your behalf.
When travelling to your destination by car you can plan ahead by checking updates on the traffic on the roads. There are many websites out there that you can find this information on. Some satellite navigations systems will also do this and automatically re-route you should there be a delay on your planned route. You could also tune in to a local radio station for latest travel news.