N.M. Code R. § 18.14.4.10
D. The following passive warning traffic control devices will be installed and maintained at all crossings unless the secretary determines that additional passive warning traffic control devices or active traffic control devices are required at a crossing. All passive warning traffic control devices shall be installed as specified in section 8B.04 of the MUTCD and shall include:
(1) a yield sign (an R1-2 sign as shown in figure 8B-1 and sized as shown in table 8B-1 of the MUTCD) shall be the default traffic control device, unless the secretary or a diagnostic study determines that a stop sign (an R1-1 sign as shown in figure 8B-1 and sized as shown in table 8B-1 of the MUTCD) is appropriate and shall be installed in compliance with the provisions of Part 2 of section 2B.10 of the MUTCD and figures 8B-2 and 8B-3 of the MUTCD;
(2) a railroad cross buck sign (an R15-1 sign as shown in figure 8B-1 and sized as of Table 8B-1 of the MUTCD) that complies with the provisions of section 8B.03 of the MUTCD;
(3) a sign indicating the number of tracks at the crossing at the location if two or more tracks are present that complies with the provisions of section 8B.03 of the MUTCD;
(4) reflective striping on the front and back of the signpost but may be omitted from the back sides of crossbuck sign supports installed on one-way streets;
(5) an emergency notification sign as shown in figure 1 below with a telephone number for the railroad dispatcher who dispatches trains using the tracks at the crossing;
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Figure 1
(6) roadway striping where appropriate;
(7) advance highway-railroad grade crossing warning signs for each direction of traffic.
[18.14.4.10 NMAC - N, 12/1/2010]