Table 1. Daily analysis of protected only operations during dynamic flashing yellow operation. Table 2. Northbound left turn delay analysis by peak period. Table 3. Southbound left turn delay analysis by peak period. Northbound and Southbound Left Turn Protected Only Durations Table 4. Northbound left turn delay reduction analysis by peak period. The duration of each protected only operation is a key performance measure, along with analysis of the traffic video from the CCTV camera. From a safety standpoint, the flashing yellow arrow operations needs to be activated only when gaps are acceptable. Table 1 shows the daily analysis of protected only operations for 6 days, all Tuesday - Thursday. The above table, along with the traffic video from the CCTV camera show, the dynamic flashing yellow working well. The CCTV camera showed drivers making good gap decisions, and not cutting off through traffic. w w w .i t e.or g D e cember 2019 41http://www.ite.org