Map 1 - Percent of Noise Estimated for Highway Networks

   

Map 2 - Percent of Noise Estimated for Railway Networks

   

 

Map 3 – Percent of Noise Estimated for Airlines

     

 

 

Map A: Railways (Train) in 1870s

Map B: Major Railways (Train)Today

   

 

 

 

Map C: Highways (Automobile) in 1907

     

 

Map D: Major Highways (Automobile) Today

   

Map E: Secondary Roads Today

   

Map F: Airline Routes in 1950

   

 

Map G: Jet Airplane Departures at 3pm Only