"portion of traffic" is a valid and usable phrase in written English.
It refers to a specific section or amount of traffic in a larger context. Example: "The new highway expansion is expected to handle a larger portion of traffic, alleviating congestion on the existing roads."
This is true, but means less than the committee suggests: GCHQ's internal documents discuss the fact that a huge portion of traffic it intercepts is peer-to-peer file sharing, and video streaming.
Among the human factors, aggressive driving behaviour constitutes a huge portion of traffic accident reasons.
Internet data traffic is increasing exponentially, especially the portion of traffic going through mobile networks.
For instance, Fox.com's 1.6 million unique visitors accounted for just a small portion of traffic to all Fox Interactive Media properties, which include social-networking giant MySpace.
He also goes on to note that a good portion of traffic on Yahoo is porn related as well (in particular Yahoo Groups) and even Google.
Similar to [13], we adopt the proportional fairness, that is, the same portion of traffic demand will be satisfied for every flow.
Among all existing applications, video streaming causes a large portion of traffics in computer network, especially in the Internet.
It has raised fears among privacy advocates because the system initially taps substantial portions of traffic coming through an Internet service provider's networks in search of data from the target of the investigation.
The other potential consequence is that large portions of traffic could get sent to areas of the network that are more easily overwhelmed.
The portion of truck traffic is about 8% of the total traffic.
On comScore's rankings, an asterisk noted that not all traffic might be accounted for, saying "entity has assigned some portion of its traffic to other syndicated entities".
