[rayiner]

I take the trip every day so I have a lot of data points. There is an efficient route to Union station from the Watergate that's almost never backed up: take Rock Creek Parkway, to Independence Ave, to I-395, exit 10 to D Street. You can be forgiven for taking Constitution, but if you take K or H, you're guaranteed to be stuck in traffic.

People who don't take this route, I imagine, either don't know Rock Creek Parkway opens to southbound traffic at 6:30 pm (I travel at 6:35), or don't know that while 395 is a mess on the VA side, it's usually clear sailing for the short stretch from Independence to D street. This isn't obscure. Rock Creek Parkway and 395 are the only freeways running across D.C. Anyone who is a professional driver should be intimately familiar with the traffic patterns on these two roads. At the very least, you shouldn't need me to give you turn-by-turns after telling you to take this route across the city.

[brianbreslin]

Do DC taxi drivers ever take this route for you? My limited experience in DC taxis was not ideal.

[rayiner]

I'd say 75% at least ask if I want to take Rock Creek Parkway (though yesterday, one got lost and took me to Virginia...) These are old guys who hang around the Kennedy Center/Watergate all day. I'd say it's flipped for ride-sharing services, where the driver almost always relies on the GPS (I take it Uber's GPS isn't very good--Waze suggests the correct route).

[afterburner]

This is what I was wondering, Waze/Google has been unexpectedly good, I thought Uber might have less than amazing GPS.

[alexfogg]

I've noticed this on multiple occasions: Uber has pretty terrible built-in GPS. It almost always has my drivers taking the larger/busier roads even though they are less direct and more congested than side streets. It's like when Google Maps gives you the three possible routes, Uber often picks the equivalent of that weird third route that makes no sense.

[rhino369]

Uber GPS is fucking terrible. It always suggests alleys in downtown DC.