Enter your cellphone carrier, and it'll plot a route based on maximizing signal availability. Simples.-- 21 Quest, Mar 24 2020 Not necessarily. The goal is to maximize signal availability, not guarantee unbroken signal along a whole journey. Usually there are several routes available on long trips, some maybe adding an extra 10-15 minutes. Maybe an extra hour on cross-state treks. What it would do is find the best compromise, out of available routes, between signal availability and drive time. Maybe there could be an aggressiveness option?-- 21 Quest, Mar 25 2020 Good one. The option of a strong signal route is one I would choose.-- xenzag, Mar 25 2020 Sounds good to me, Mr. 21. Hope you are well.-- blissmiss, Mar 25 2020 Doing quite well, Ms Bliss, thank ya!-- 21 Quest, Mar 25 2020 random, halfbakery