Please see my edit.
With your map showing a supercharger near Dover which I appreciate, a BEV can do it, though it will add hours* to the time it takes an ICE for the same trip.
*yes, hours, KTS more than just a couple of 30 minute 70% charges. It needs to be 100% leaving Dover, because there is no way I can accept the risk of the Bay Bridge/Tunnel below 20% range. Too much to go wrong. A semi truck recently crashed on the CBBT. It was shut down for six hours.
I completely understand the anxiety of being in a traffic jam in an area you are basically stuck in.
A common but shorter one in my area are the bridges and raised freeways in and out of san francisco in bumper to bumper traffic with the occasional "ran out of talent" wreck clogging several of the few available lanes.
The other common one is a 5 freeway mid day LA- San Francisco commute on the 5 where you end up "cater-pillaring" for 5-6 hours up to 85- down to 0 a thousand times. Ill typically see 4-5 rear end accidents every tine I'm foolish enough to make the trip on 3 day weekend. This is a stressful drive when you undertake it and much harder in my half ton truck than my SUV
One of the things that I was moderately surprised by in my multiple borrowing of high end BEV's was the consumption trend in traffic as opposed to a pure ICE or even Hybrid.
In an ICE as soon as you slow down and start cater-pillaring your mileage begins to drop immediately as does the time the car can run on whats left in the tank.
In My hybrid it does pretty well caterpillaring until the AC, or heater finally kill the big pack and then you end up idling like an ICE till it fills then do it all over again, at least the lexus system doenst kill the AC when stopped at idle.
The BEV actually works opposite, the mileage goes up and the time you can spend in the cabin extends as the motor load at speed is a far greater drag than the climate control (especially the new octovalve rigs) sitting in traffic and caterpillaring is much easier on it that steady state cruising. On some level I knew this going in, but never saw a distance to empty actually rise on any prior vehicle.
On the route planning Ive found 2 great online tools, "ev route planner", and "A better route planner" but neither are as slick as what tesla put together, its super easy to pick and determine a route as well as control how much reserve you will have at each stop. They have that down.
What isnt clear to me from our dialog is how often you do stop on your trips.
I was used to stop about every 3-4 hours and trying to jam snack, coffee bathroom, meal and a few emails in each one. Sometimes Id just take a bio break/ coffee refill on one and fill up/ grab lunch on the other.
Its too bad a bigger slicker Volt doesn't exist. It would bridge the gap nicely for most guy that are on the edge of electrics today.