On a SEPTA Regional Rail and Rail Transit map, what train line is indicated by the color purple?

The Norristown High Speed Line is depicted in purple on the SEPTA Regional Rail and Rail Transit map. This color-coding is important for quickly identifying the lines on the map, as each line is assigned a distinct color for ease of navigation. The use of the color purple not only helps riders recognize their desired route at a glance but also maintains consistency across various maps and guides used by SEPTA.

The other lines mentioned have their own specific colors assigned, which serve to prevent confusion when interpreting the map. This color differentiation is a key aspect of public transportation maps, allowing for quick identification and improving the overall user experience for those traveling throughout the region.