A further update was needed to support higher speeds when 28kbit/s modems become common.
There are many segments along the river that can only support 90 mph top speeds or lower due to relatively sharp turns.
This design can support higher speeds than the full complement design.
The track superelevation was increased to support higher speeds.
Many modern devices support speeds of 115,200 bit/s and above.
Thunderbolt ports can support higher speeds, but don't do so right now because the proper transducer is not available yet in the market.
Once the upgrades are complete, the tracks will be able to support higher speeds.
Initially, the network will support speeds of up to 45Mbps.
The link will be designed to support speeds up to 300 km/h, but no technical details have been made public as of March 2008.
These trains are allowed to run between 70 and 80 km/h, although certain sections of the line could easily support higher speeds.