The City Engineer shall not approve any such map or plan unless every
lot shown thereon abuts upon at least one street which is at least
60 feet wide, and the streets, alleys, avenues, highways and thoroughfares
shown thereon are laid out with due regard to the safety, health,
comfort and convenience of the public and with proper conformity with
the layout of the streets, alleys, avenues, highways and thoroughfares
of such City and the territory lying within three miles thereof.