Final answer:
TRSAs are depicted on VFR sectional charts and terminal area charts with a dashed blue line to help pilots identify the boundaries of these areas and provide additional radar services.
Step-by-step explanation:
TRSAs
(Terminal Radar Service Areas) are depicted on VFR sectional charts and terminal area charts with a
dashed blue line
. TRSAs are airspace areas in which pilots can receive additional radar services, similar to Class C airspace. They are designed to enhance safety and provide separation between IFR and VFR aircraft. TRSAs are indicated on charts to help pilots identify the boundaries of these areas.