---
kind: "section"
citation: "49 C.F.R. § 587.6"
title: "49"
number: "587.6"
heading: "General description."
url: "https://uscodex.org/cfr/49/587.6"
---

# §587.6. General description.

- (a) The moving deformable barrier consists of component parts and component assemblies which are described in drawings and specifications that are set forth in this § 587.6 of this chapter (incorporated by reference; see [§ 587.5](/cfr/49/587.5.md)).
- (b) The moving deformable barrier specifications are provided in the drawings shown in DSL-1278 through DSL-1287, except DSL-1282, and the drawing shown in DSL-1290 (DSL-1278 through DSL-1287, except for DSL-1282, and DSL-1290 are incorporated by reference; see [§ 587.5](/cfr/49/587.5.md)).
  - (1) The specifications for the final assembly of the moving deformable barrier are provided in the drawings shown in DSL-1278, dated June 2002.
  - (2) The specifications for the frame assembly of the moving deformable barrier are provided in the drawings shown in DSL-1281, dated August 20, 1980.
  - (3) The specifications for the face of the moving deformable barrier are provided in the drawings shown in DSL-1285, dated October 1991, and DSL-1286, dated August 20, 1980.
  - (4) The specifications for the ballast installation and details concerning the ballast plate are provided in drawings shown in DSL-1279 and DSL-1280, both dated August 20, 1980.
  - (5) The specifications for the hub assembly and details concerning the brake are provided in drawings shown in DSL-1283, dated October 1991.
  - (6) The specifications for the rear guide assembly are provided in drawings shown in DSL-1284, dated August 20, 1980.
  - (7) The specifications for the research axle assembly are provided in drawings shown in DSL-1287, dated October 1991.
  - (8) The specifications for the compliance axle assembly are provided in drawings shown in DSL-1290, dated October 1991.
- (c) In configuration 2 (with two cameras and camera mounts, a light trap vane, and ballast reduced), the moving deformable barrier (crabbable axle), including the impact surface, supporting structure, and carriage, weighs 3,015 pounds, has a track width of 74 inches, and has a wheelbase of 102 inches.
- (d) **In configuration 2, the moving deformable barrier has the following center of gravity—**
- (e) **The moving deformable barrier has the following moment of inertia—**

## Notes

### Amendments

[55 FR 45779, Oct. 30, 1990; 56 FR 47011, Sept. 17, 1991, as amended at 57 FR 7558, Mar. 3, 1992; 68 FR 44472, July 29, 2003]

### Authority

Authority: 49 U.S.C. 322, 30111, 30115, 30117, and 30166; delegation of authority at 49 CFR 1.50.

### Source

Source: 55 FR 45779, Oct. 30, 1990, unless otherwise noted.

### Amendments

[55 FR 45779, Oct. 30, 1990; 56 FR 47011, Sept. 17, 1991, as amended at 57 FR 7558, Mar. 3, 1992; 68 FR 44472, July 29, 2003]