MingMao asks:
Is a 巷口 only indicative of the corner of a T-shaped intersection, or does it also refer to the corner of a lane way and a road, making a 4-way intersection?
My picture answer 
Hopefully that makes the term 十字路口 make a bit more sense too.
Hello, the first one on the picture is “十字路口”， the second is " 三叉路口“ ， the last one is " 巷口” ， 巷口only means the corner of a lane way.
Hi,
Thanks Fiona for sharing the nice pictures which demonstrate the different type of road.
The first one is 十字路口
The second one is 三岔口/T字路口/丁字路口
The third one is 巷道/里弄/胡同
