MAYDAY, Pls specify the amount of time in minutes that you suggest within each phase .....
Warm Up time ......
Exercise Time (for lack of a better phase) ....
Warm Down Time ....
Thanks!
I paid one of the top training coach teams $1k/mth to train me. I can afford the better coaches so why not

I was focusing on increasing my 1hr power FTP to assist me with endurance because i am an anaerobic rider (track cycling) and struggle with endurance.
My max HR is 181. I used a $5k power meter and rode using watts. Watts are a leading indicator, HR is a lagging indicator. Using watts manages your HR but in a nutshell 50% of your FTP is 50% HR, 75% of FTP is 75% HR etc.
With my data i can see the HR brackets are influenced by your genetic makeup. for example, if you are an endurance person you can ride for 4hrs @ 80% of your FTP (80% of HR pretty much). I am anaerobic (not a pure sprinter but i am fast) and i am closer to 72% which over 4hrs is a massive difference.
An example block is below of what i would do in that week. Each block was 4 weeks then 1 week of resting consisting of 2 x 1hr rides @ 50%. Then i'd start the next block.
2 x 1.5hr training sessions --> 15min warmup @ 50% / 4 x 12min sets @ 70% with 3 x 5min rests between @ 50% / 15min cooldown @ 50%
1 x 2hr doing hill repeats at 95% FTP
1 x 2hr doing an endurance rider @ 70% FTP
Prior to this specific training my FTP with 6hr riding a week was around 250w which is shit. With this focused training i got to 265w in about 6 weeks and ended at 285w at 12 weeks which is enough to drop any weekend warriors and be an ok C grade type rider for endurance.
The lessons learned:
1) Focusing on this type of fitness made me great for sustained efforts only.
2) I felt fucking fit on a bike yet all that improvement made no improvement to my anaerobic power which is my genetic strength. My sprint was worse, my 30s was worse, my 1min /3min / 5min zero change. My 10min power and up improved.
3) 285w is still shit in the cycling world. I weighed 82kg and guys at 73kg put out that same power with 8hrs/wk. You can't beat your muscle makeup.
4) I am the first to blowup and the first to cramp on any ride around the 3hr mark. With this riding i was cramping at the end of a hard 4hr ride. Big whoop.
5) Hunger was out of control. I struggled to hold my weight at 81kg and was constantly hungry and overeating. Cyclists are all fat for a reason, the riding makes you insanely hungry.
6) Focus on your strengths and become better at what you are already good at.
7) HR brackets are determined by your genetic aerobic capacity. If you are endurance you can follow the guidelines easily. If you are like me you need to drop them lower otherwise you burn up, overtrain, fatigue then ultimately you get sick.

The overwhelming rule in training is go much easier than what you think and then go much harder than what you think, never train in the middle ground.
Point 6 & 8 are really the main lessons.
After the above 12 week program was completed, i went back to riding to my genetic strength. I rode 3hrs/wk which is bugger all but i'd hit shit hard and then ride like a slug.
It's the illusion of being fast. I'd do no work in a pack. I would get dropped on climbs and cruise to the top (the pack waits). Then in sections of 20s-30s long hills i would go full gas and hit hill after hill all out and burn all of them up because they can't keep up with the power/weight ratio i can dish out. So to their surprise they saw me attack on short hills and sprint away. It was all an illusion. I was quick for maybe 2 minutes out of a 2.5hr ride but they all thought i was a weapon LOL.