A house by the highway, or a house of the highway guard - this is how the word
Chausseehaus can be translated from German. Abbreviated Ch. Hs., ehem Ch.Hs.,
Chs., ehem. Chs. These abbreviations are rarely found on German topographic maps
from the 1930s. Even more rarely, houses by the highway can be seen in person.
The house by the highway was a service room and, at the same time, a home for
the guard and his family. The first houses by the highway began to appear at the
turn of the 18th and 19th centuries, when in Germany there was a massive
Eydtkunen (Chernyshevskoye) through Königsberg to Elbing (Elbląg) and further to
Berlin), carried out already in Soviet times, several highway houses were
demolished.
Just over a dozen former highway houses have survived in the Kaliningrad region.
In the Polish part of East Prussia, there are also several houses along the
highway. We do not know their exact number, but several surviving highway houses
are shown in the photographs below.
* Reichsstrasse ( Reichsstraße) -
a name introduced in the Third Reich in 1934, replacing the previous term
Fernverkehrsstraße - a road of national importance. Many of the highways that
existed at that time received their own numbers, and the Reichsstrasse
themselves were designated by yellow plates with road numbers on them. With the
advent of the autobahns, the Reichsstrasse became the second most important
roads in Germany.
Sources:
Wikipedia
Bildarchive
Photo gallery of maps in the German language (maps). — Gotha, 1941.