You are a director of a major manufacturing organisation, and collecting various pieces of information for your potential customers, such as on one of your major customers who is based in London, will require delivery lorries to travel the length of the M1. You will investigate the speed on this road using the data available at http://www.trafficengland.com/traffic-report

You should only use the source specified. You will need to adopt a sampling approach and credit will be given for schemes which show you have considered how to apply the principles of sampling to obtain the best results with the smallest possible dataset.