Explanation of your matrices

The columns are as follows: 1 - Market Segment; 2 - Origin Zone; 3 - Destination Zone; 4 - No of Trips; 5 - Variance.

The Market Segment number signifies the mode:

1. Train
2. Underground
3. Bus
4. Car driver
5. Car passenger
6. Motorcycle
7. Pedal cycle
8. Walk

   A matrix built by mode chain will have a further eight Market Segments:

9. Train + Car
10. Train + Bus
11. Train + Underground
12. Underground + Car
13. Underground + Bus
14. Bus + any other
15. Car driver + any other
16. Car passenger + any other

A matrix broken down by car availability will have 32 Market Segments as follows:

1. Train, no cars
2. Train, 1 car, 1 adult
3. Train, 1 car, 2+ adults
4. Train, 2+ cars
5. Underground, no cars
6. Underground, 1 car, 1 adult
7. Underground, 1 car, 2+ adults
8. Underground, 2+ cars
9. Bus, no cars
10. Bus, 1 car, 1 adult
11. Bus, 1 car, 2+ adults
12. Bus, 2+ cars
13. (empty market segment)
14. Car driver, 1 car, 1 adult
15. Car driver, 1 car, 2+ adults
16. Car driver, 2+ cars
17. Car passenger, no cars
18. Car passenger, 1 car, 1 adult
19. Car passenger, 1 car, 2+ adults
20. Car passenger, 2+ cars
21. Motorcycle, no cars
22. Motorcycle, 1 car, 1 adult
23. Motorcycle, 1 car, 2+ adults
24. Motorcycle, 2+ cars
25. Pedal cycle, no cars
26. Pedal cycle, 1 car, 1 adult
27. Pedal cycle, 1 car, 2+ adults
28. Pedal cycle, 2+ cars
29. Walk, no cars
30. Walk, 1 car, 1 adult
31. Walk, 1 car, 2+ adults
32. Walk, 2+ cars

    A mode chain matrix broken down by car availability will have the following extra Market Segments:

33. (empty market segment)
34. Train + Bus, no cars
35. Train + Underground, no cars
36. Train + Car, 1 car, 1 adult
37. Train + Bus, 1 car, 1 adult
38. Train + Underground, 1 car, 1 adult
39. Train + Car, 1 car, 2+ adults
40. Train + Bus, 1 car, 2+ adults
41. Train + Underground, 1 car, 2+ adults
42. Train + Car, 2+ cars
43. Train + Bus, 2+ cars
44. Train + Underground, 2+ cars
45. (empty market segment)
46. Underground + Bus, no cars
47. Underground + Car, 1 car, 1 adult
48. Underground + Bus, 1 car, 1 adult
49. Underground + Car, 1 car, 2+ adults
50. Underground + Bus, 1 car, 2+ adults
51. Underground + Car, 2+ cars
52. Underground + Bus, 2+ cars
53. Bus + any other, no cars
54. Bus + any other, 1 car, 1 adult
55. Bus + any other, 1 car, 2+ adults
56. Bus + any other, 2+ cars
57. (empty market segment)
58. Car driver + any other, 1 car, 1 adult
59. Car driver + any other, 1 car, 2+ adults
60. Car driver + any other, 2+ cars