Thank you for your detailed and latest information.
Some questions from myself: Your "shuttled" route seems to be the best alternative and I really would like to understand your route precisely.
(1) In my understanding, after arriving Cleghorn via Cajon Blvd, you used (a)southbound I-15 to Kenwood, and then used (b)northbound I-15 from Kenwood to Oak Hill Exit. Is this correct?
(2) If you used (a)southbound I-15 from Cleghorn, why did you apply this route? (This may be a silly question, but to Oak Hill Exit, it is possibly faster and less distant to ride northbound I-15 directly from Kenwood, than to go to Cleghorn via Cajon Blvd and back to Kenwood via southbound I-15)
(3) If you used (b)northbound I-15 from Kenwood to Oak Hill Exit, was going through the shoulder of northbound I-15 safe or risky? Were there enough shoulder available for a safety ride? (I am worried because I have heard that the shoulder I-15 through the construction area is very limited (and almost no shoulder in some sections).)
The information from which the cyclist went through this route is very helpful for me to consider the appropriate alternatives. I really look forward to your kind reply.
Thank you very much in advance.