If I enter the Congestion Relief Zone, drive one block within the zone, and then exit, will I still be charged a toll? 

Yes. You will be charged a toll if you enter the Congestion Relief Zone, drive one block within the zone, and then exit. 
 
Here are some key points to consider: 
 

• Tolling Criteria: The congestion pricing toll applies to any vehicle that enters the designated Congestion Relief Zone, regardless of the distance traveled within the zone. Even if you drive only one block and then exit, the toll will be charged.
• Entry Detection: The tolling system uses electronic tolling gantries, cameras, and sensors at various entry points to detect when a vehicle enters the zone. Once your vehicle is detected entering the zone, the toll is applied.
• No Minimum Distance: There is no minimum distance requirement for the toll to be charged. The toll is based on entry into the zone, not the distance traveled within it. 
   
  See the full toll rate schedule.