Since then, Boulder has adopted a policy of controlled urban expansion.

Due to 20th century hasty urban expansion, only the last two gates remain standing.

The next possible direction for urban expansion was in the north and the south.

The area in which the species occur is going through urban expansion at a rapid rate.

This also applies to rural areas that are under immediate pressure from urban expansion.

In the second half of the 19th century, urban expansion was necessary because of a fast growing population.

With urban expansion over the years, the building has remained inside of the city.

With urban expansion, additional excavations were conducted in the 1970s, late 1980s, and throughout the 1990s.

These areas are considered critical especially in terms of development as urban expansion.

Still, she does not turn a blind eye to the effects of urban expansion.