The map above depicts the positions of Syrian government forces in the 1070 Apartment Project (1070 AP) of Aleppo city.
Following the Jaish al-Fatah offensive launched on October 28, the Syrian army and Hezbollah were forced to retreat to the northeastern part of 1070 AP. By November 1, they have kept 3 groups of buildings there (yellow, red and blue on the map). The supply line #1 have been cut off by Jaish al-Fatah. The supply line #2 is vulnerable to fire by militants.
The government-controlled sector is separated from Jaish al-Fatah units by an open ground. This is why the militants are not able to take control of these building blocks. Clashes in this non-populated area allow the Syrian military to use massively warplanes and artillery to whittle the jihadist manpower and military equipment.