Type of station

Type of area

Characterisation of area

Traffic

(T)

Urban

(U)

Residential

(R)

Industrial

(I)

Suburban

(S)

Commercial

(C)

Background

(B)

Rural

(R)

Industrial

(I)

Agricultural

(A)

Natural

(N)

Residential/Commercial

(RC)

Commercial/Industrial

(CI)

Industrial/ Residential

(IR)

Residential/Commercial/Industrial

(RCI)

Agricultural/Natural

(AN)