All RM roads with HDF entries:
RM 12
RM 32
RM 33
RM 42
RM 150
RM 152
RM 165
RM 169
RM 187
RM 189
RM 243
RM 334
RM 335
RM 336
RM 337
RM 385
RM 386
RM 473
RM 474
RM 479
RM 480
RM 484
RM 501
RM 505
RM 584
RM 620
RM 628
RM 648
RM 652
RM 674
RM 687
RM 690
RM 693
RM 783
RM 853
RM 864
RM 915
RM 962
RM 963
RM 965
RM 967
RM 1022
RM 1024
RM 1050
RM 1051: FM in the HDF, but signed as RM
RM 1061
RM 1077
RM 1108
RM 1111
RM 1165
RM 1174
RM 1221
RM 1222
RM 1282
RM 1312
RM 1319
RM 1320
RM 1321
RM 1323
RM 1357
RM 1376
RM 1431
RM 1474
RM 1492
RM 1526
RM 1555
RM 1623
RM 1631
RM 1672
RM 1674
RM 1675
RM 1676
RM 1691
RM 1723
RM 1773
RM 1826
RM 1832
RM 1837
RM 1855
RM 1865
RM 1869
RM 1871
RM 1888
RM 1900
RM 1919
RM 1964
RM 1973
RM 1989
RM 2023
RM 2034
RM 2059
RM 2083
RM 2084
RM 2139
RM 2147
RM 2166
RM 2222
RM 2233
RM 2241
RM 2242
RM 2243
RM 2244
RM 2248
RM 2277
RM 2291
RM 2317
RM 2322
RM 2323
RM 2325
RM 2329
RM 2338
RM 2340
RM 2341
RM 2342
RM 2355
RM 2375
RM 2381
RM 2389
RM 2398
RM 2400
RM 2401
RM 2424
RM 2463
RM 2469
RM 2545
RM 2588
RM 2593
RM 2594
RM 2596
RM 2597
RM 2600
RM 2618
RM 2627
RM 2630
RM 2631
RM 2654
RM 2692
RM 2695
RM 2699
RM 2721
RM 2722
RM 2748
RM 2758
RM 2766
RM 2768
RM 2769
RM 2775
RM 2804
RM 2810
RM 2828
RM 2831
RM 2857
RM 2871
RM 2886
RM 2900
RM 2909
RM 2970
RM 2995
RM 3008
RM 3014
RM 3054
RM 3093
RM 3130
RM 3137
RM 3160
RM 3166
RM 3232
RM 3235
RM 3237
RM 3238
RM 3260
RM 3273
RM 3296
RM 3307
RM 3347
RM 3348
RM 3404
RM 3474
FM 2690: the HDF has it as RM, but signs and other sources have it as FM
