Deletion of "interstate = Bundesstraße": supported
However, regarding the word pair "interstate = (Bundes)Autobahn", I have serious doubts:
The interstate highway system was originally conceived as a highway system connecting "...the principal metropolitan areas, cities, and industrial centers, to serve the national defense, and to connect at suitable border points with routes of continental importance in the Dominion of Canada and the Republic of Mexico."
The original concept of 1945 did not "...call for a uniform design for the entire system, but rather for uniformity where conditions such as traffic, population density, topography, and other factors were similar. Designs, which would be based on traffic expected 20 years from the date of construction, would be adjusted to conditions. Most segments would have at least four lanes and full control of access would be provided where permitted by state law. But two-lane segments, limited access control, and at-grade railroad and highway crossings would be permitted where warranted by low traffic volumes." (same source)