Green Line Extension Milestone - Track Installation Update

[@jimreilly9508]

even a snail gets where it's going occasionally

[@patrickdougherty2777]

what is the purpose of the 3rd rail? Electrical return for the power supplied by the catenary wires?

[@MilliBlom]

Good question! Under regular conditions, that third rail would never actually touch the train. Instead, it's there as an extra guideway in case a train derails. These are often featured on the outside edges of curves, where derailments are more likely to send the train off the tracks, or on bridges where a derailed train could fall off from. These extra rails can take a few different forms, sometimes being a single extra rail on the outside, but also often being a set of two rails between the regular ones. The latter kind is usually used for bridges.

[@Tino16400]

Should open it up next year why wait 2 years your customers want it earlier you will have more customers if you open it up after testing