The current downtown entrance is really a joke. It's very hard to get to, and hard to explain to anyone how to get to it. I have to cut under the A ramp, take the sidewalk over the 394 bridge against traffic for a block just to get there, it saves me an extra 6 blocks in rush hour traffic. I endure it but I don't like it.
Thanks for posting the map. I have already expressed by support for building the trail, but I hope in the plan that there are a few more entrances/access points along the stretch. It's not clear from the maps I've seen. I think it will serve downtown businesses and downtown cyclists far better if they can find one or two.