The problem is nobody seems to know what to do with the yield sign. Everyone handles it differently--some pay attention to it, others ignore it, others just go ahead and go no matter what.

There needs to be a flashing beacon on the yield sign and maybe a MUST sign below. A full cycle signal is NOT the best answer for this intersection.
While you're in the neighborhood, how about adjusting the automatic turn signal triggers at Belmont onto Glen Echo (How will Lipscomb's new driveway access the light?). How many accidents have occured at the school zone/onstreet parking allowed at the Granny White/Lipscomb commercial district? (speed limit ignored,must cross double-yellow line to pass thru, sunken manhole covers) Extremely Dangerous!!

Metro Public Works (MPW) Traffic Division will review the signals at Belmont and Glen Echo for any timing adjustments needed. Accident data, and other traffic-related information for a specific location, is available by making a request for it through MPW Customer Service:
Office: (615) 862-8750
Email: customer.care@nashville.gov
Public_Works@nashville.org
Web: http://www.nashville.gov/pw/talktous/default.aspx

This intersection at Shackleford and Granny White Pike has been studied several times in recent years by Public Works. Because the intersection is so large and wide open, it really acts as two separate intersections. The large radius combined with skewed roadways makes it difficult to sign or signal.

Southbound Granny White traffic turning onto westbound Shackleford is supposed to yield to westbound Shackleford. Yield markings and oversized signage is in place to emphasize the yield control.

One suggestion studied was to force yielding Granny White traffic to make a full stop (instead of yield) before entering Shackleford; since this would likely increase congestion for outbound Granny White, it was deemed unacceptable.

Changing the alignment of both roadways (to create a single "true" intersection) is probably the most desirable solution, but would require funding from the department's Capital Projects budget which is currently not available.

In the meantime, PW Traffic Division monitors this location to ensure that all appropriate signage is in place. The Metro Police Department would be responsible for enforcement.