(4) During rapidly moving situations, the regi- mental train bivouac may be merely a temporary assembly area for trains and administrative person- nel.
(5) The size of the area required for the bivouac may vary from approximately 1/4 square mile to 1 or 2 square miles, depending primarily on the con- cealment afforded, the road net, and the features favoring defense against air and mechanized attack.
(6) The regimental train bivouac and the instal- lations and personnel in the bivouac are commanded
by the service company commander. 50b (2) (b).)
b. Characteristics. The following characteristics are sought in selecting an area for the regimental train bivouac:
(1) Location beyond the mass of probable hostile light artillery fires.
(2) Accessibility to roads leading to forward troop locations as well as to the rear.
(3) Concealment from hostile air and ground observation.
(4) Sufficient size to permit dispersion of ve- hicles and activities.
(5) Suitable standing and turn arounds for motor vehicles.
(6) Features favoring defense against air and mechanized attack.