In operation since 2005, the current system comprises a single route, with both a normal and an express service.

Add to those frequencies at least seven additional airlines flying that single route.

"Do you imagine that such a technology would be limited to a single route?"

"I think a network of services will have to be set up, not just a single route," he said.

They also saw homeownership as the single greatest route to a sound financial future.

Changes at the hub, or even in a single route, could have unexpected consequences throughout the network.

Once again he considered that single route to the summit and saw it was a deathtrap.

However, in 1919 ten vehicles were introduced on a single route, beginning an operation that would last for almost 70 years.

But having ceded those points, the city insisted on a single route.