The following data set and macro variables contain the input data that are used in this example:

data time_data;
   input location $11.
      Heathrow Harrow Ealing Holborn Sutton Dartford Bromley Greenwich
      Barking Hammersmith Kingston Richmond Battersea Islington Woolwich;
   datalines;
Heathrow    0 20 25 35 65 90 85 80 86 25 35 20 44 35 82
Harrow      .  0 15 35 60 55 57 85 90 25 35 30 37 20 40
Ealing      .  .  0 30 50 70 55 50 65 10 25 15 24 20 90
Holborn     .  .  .  0 45 60 53 55 47 12 22 20 12 10 21
Sutton      .  .  .  .  0 46 15 45 75 25 11 19 15 25 25
Dartford    .  .  .  .  .  0 15 15 25 45 65 53 43 63 70
Bromley     .  .  .  .  .  .  0 17 25 41 25 33 27 45 30
Greenwich   .  .  .  .  .  .  .  0 25 40 34 32 20 30 10
Barking     .  .  .  .  .  .  .  .  0 65 70 72 61 45 13
Hammersmith .  .  .  .  .  .  .  .  .  0 20  8  7 15 25
Kingston    .  .  .  .  .  .  .  .  .  .  0  5 12 45 65
Richmond    .  .  .  .  .  .  .  .  .  .  .  0 14 34 56
Battersea   .  .  .  .  .  .  .  .  .  .  .  .  0 30 40
Islington   .  .  .  .  .  .  .  .  .  .  .  .  .  0 27
Woolwich    .  .  .  .  .  .  .  .  .  .  .  .  .  .  0
;

%let num_vehicles = 6;
%let time_limit = 120;
%let depot = Heathrow;