Hi, I have an inquiry for a more experienced map editor. The permalink I am about to paste is for an on and off ramp to the Monash Freeway in east Melbourne, Victoria. My inquiry is this, it is physically possible to drive down the off ramp and then when the lights are green, to drive straight across and back onto the on ramp to get back on to the freeway.
Is there a particular reason why these on and off ramps don’t allow this maneuver? I figured it may be because of a routing issue (WAZE telling a user to get off the freeway then back on as it is a slightly shorter distance or something than staying on the freeway), but I haven’t been able to find any details about it in the Wiki.
Could someone point me in the direction of the relevant information, or explain to me why it has been done this way and not allowing straight through traffic, or can I actually change it so the maneuver is possible.
The reason for this inquiry is that I was driving along this section of road and WAZE wanted me to get off at the next exit after this one, however, doing so would have been slower based on the traffic at the time and that I needed to come back towards where I got off the freeway anyway, as my destination was between exits. So I figured going in one direction instead of doubling back was a shorter and quicker option on this trip. When I went down the exit ramp, WAZE instructed me to turn left, make a u-turn, then turn left back onto the freeway on ramp. If the map was setup as the road is laid out, it should have told me to go straight on to the on ramp.
So if the name of the freeway segments are different, you’d add in the different name of the first segment to the alternative name box on the 2nd segment? Sound correct? Also, the detour would be an off and an on ramp, plus a segment between the divided road, so that should cover the other restriction about number of segments. As it is, I think a u-turn may be possible at this intersection anyway (need to check that) and if it is, this setup doesn’t allow that.
The freeway segments actually need to have the same name which they do. Indeed all of the detour prevention mechanism requirements are met in this case.
Just PM lakeyboy as he has been setting these up like that so he might have a reason not immediately apparent.
After assessing the issue and privately replying to Tricentrics, I have made changes to the Monash Fwy / Forster Rd interchange to allow straight ahead movements from off-ramps to on-ramps as well as u-turns at intersecting roads. This practice should be adopted (if ok’d by other Wazers) in addition to the current interchange mapping style.
I’m sure (at least hope) Luke won’t mind me quoting his PM in here. Here is what he sent me.
I replied by saying I’ll check out his solution used at the other intersection and will help him roll out what I can and lock it to lvl 2 since I’m not lvl 3 (YET).
Otherwise, when making a u-turn, you’d get, “Turn Right onto Entry to M1 - Monash Fwy, then Turn Right onto Forster Rd to Mount Waverley” If they are blank as far as names are concerned, it should say, “Turn Right, then Continue onto Entry to M1 - Monash Fwy” when entering the Freeway and Turn Right, Then Turn Right onto Forster Rd" when making a U-turn.
Same deal with the setup on the other side of the Freeway.
So according to the junction angle tool you will get the following instructions:
Exit left onto Exit 9: Forster Rd
Turn right onto Forster Rd to Mount Waverley
Keep left onto Entry to M1 Monash Fwy to City
As for those other two segments I think you are right assuming it is legal to do a uturn there. Streetview doesnt show that it is but I assume that it has changed?
Nah, it is legal to do a u-turn there as the only time you can is when you have a green arrow to turn onto the freeway I’m pretty sure. As for the other issue with the exit left and right lanes, I agree, the angle of the segment from the end of the exit segment needs to be adjusted so it says keep left and keep right to the respective turning directions onto the respective roads.
And as for making a u-turn, if you remove the street names for the 2 segments required to make a u-turn, it should say, “Turn Right, then Turn Right onto Forster Rd”, but how would that effect turning right onto the freeway if the first segment is nameless? Would it still say, “Turn Right onto Entry to M1 to City” or whatever the name of the 2nd segment is?
Because I agree that Forster Road should be entirely non-split in Waze, I’ve devised a new way of dealing with non-split road interchanges, which will give correct, detailed TTS as well as allowing the necessary turns and movements (and allows for turns to be disallowed too if need be).
Also keep in mind that the Forster Road interchange is currently undergoing some minor roadworks, however they aren’t major enough to affect the design of the interchange.
I thought that at first too, but that segment is what enables the TTS to say, “Turn Right on to Forster Rd to Mount Waverley” And the one on the other side of the freeway to say, “Turn Right on to Forster Rd to Clayton”
