I was looking at the STARs at KPHX. The ARLIN FOUR arrival here has T-ended lines between the BLYTHE VOR and SCOLE, and between SCOLE and CALIE fixes. It also has arrow-ended lines between CALIE and HYDRR, and between HYDRR and PAYINT.
What does the difference in symbology mean?
At first I thought it indicated a different MEA, but then I looked at the DSERT TWO arrival here, and I see the T-ended lines between SHOCK and BUSTD, and between BUSTD and YOLOW, and the MEAs on both the neighboring segments is the same (9000).