Choose columns for traffic roads analysis

[RocketFan]

C1 - traffic intensity C2 - traffic intensity (for tourists) C3, C4 - useless, but it depends on conclusions from #17 C5, C6, C7, C8 - difference of it can suggest traffic jam and together can show movement in the grid C9, C10 - useless, because often people always have activated data connection C11 - can help with detection of road accidents C12, C13 - depends on the meaning D1 - countries of origin for tourist influencing in road traffic E1 - can be compared with C11, to assurance of traffic accident E2, E3, E4, E5 - useless, because data usage has nothing to do with road traffic E6 - hard to deal and interpret with applications data E7, E8, E9 - to detect traffic jam and identify E10 - depends on the meaning

[RocketFan]

C12, C13, E10 - meaning explained in #18, and they are useless for our problem