The daily number of tourists that are expected to take the cable car to Machu Piccu is smaller than the original resident population of Incas.

The construction of the cable car terminal at Machu Picchu will require the use of potentially damaging heavy machinery at the site.

Machu Picchu is already one of the most popular tourist sites in Peru.

Natural weathering will continue to be a more significant cause of the deterioration of Machu Picchu than tourist traffic.

The cable car will replace the tour buses whose large wheels and corrosive exhaust at present do significant damage to the site.