Big business and Traffic

Big business noun - Commercial enterprises organized and financed on a scale large enough to influence social and political policies.

Traffic and big business are semantically related. in manufacturing topic. In some cases you can use "Traffic" instead a noun phrase "Big business".

Traffic noun - The buying and selling of goods especially on a large scale and between different places.

Big business and traffic are semantically related. You can use "Big business" instead a noun "Traffic".