I've been using Maps since the original Motorola Droid and now I have the Galaxy Nexus. The point I'm trying to get at is that the colors indicting traffic conditions are too hard for me to distinguish. I am color blind when it comes to red and green. These are steps I take in order to encounter the issue.
1. I type the address and get directions
2. Then I press the layer button in order to get traffic.
3. Traffic is then layered underneath the direction lines.
When the two color lines merge, or are layered on top each other. I can't tell if it's green or red. I believe there should be option to in order to make it more distinguishable. I believe this is crucial because while I'm driving I cannot check traffic conditions while getting directions.