RNAV IFR TERMINAL TRANSITION ROUTES
The FAA is moving forward with an initiative to chart
RNAV terminal transition routes through busy airspace.
In 2001, some specific RNAV routes were implemented
through Charlotte’s Class B airspace, allowing RNAVcapable
aircraft to cross through the airspace instead of using costly and time-consuming routing around the
Class B area. The original RNAV terminal transition
routes have evolved into RNAV IFR terminal transition
routes, or simply RITTRs.
Beginning in March 2005, with the publication of the
notice of proposed rulemaking (NPRM) for the
Charlotte, North Carolina, RITTRs, the FAA advanced
the process of establishing and charting the first
RITTRs on IFR en route low altitude charts. The five
new RITTRs through Charlotte's Class B airspace took
effect on September 1, 2005, making them available
for pilots to file on their IFR flight plans. Additional
RITTRs are planned for Cincinnati, Ohio, and
The RITTRs allow IFR overflights through the Class
B airspace for RNAV-capable aircraft. Without the
RITTRS, these aircraft would be routinely routed
around the Class B by as much as 50 miles.