Staying on the current alignment would have less impact on surrounding businesses and properties.

cause immeasurable damage to ... surrounding properties.

The impact of businesses is more indirect.

I use computers for email, staying current with my own website as well as finding important information through other websites. I also use it for creating MP3 files of new music I'm working on.

This will have a significant impact on asset values for land and properties with or without planning permission.

The affected states and the surrounding ones apparently made extraordinary efforts to get claims filed.