Thanks for your response! I got 80 from the trunk way from which the motorway link leaves. In some situations, especially on off-ramps, there isn’t any speed limit sign at the beginning of the link only at the end of it or in the middle. I observed that in these situations the speed limit of the motorway is added on the first part of the link. Because this is the predominant way of adding speed limit on links, we will map in the same way: if there isn’t a speed limit sign at the beginning of the link we will add the speed limit of the motorway and other speed limit that occurs along the link. If there is a speed limit sign at the beginning of the link (e.g.SL60 in our example) we will add the speed limit in the way you mentioned (60 then 100).
Best, Lacri From: Graeme Fitzpatrick <graemefi...@gmail.com> Sent: Thursday, February 28, 2019 12:19 AM To: Lacramioara Maghiar - (p) <lacramioara.magh...@telenav.com> Cc: talk-au@openstreetmap.org Subject: Re: [talk-au] Editing speed limit in Australia Hi Lacri On Wed, 27 Feb 2019 at 21:56, Lacramioara Maghiar - (p) <lacramioara.magh...@telenav.com<mailto:lacramioara.magh...@telenav.com>> wrote: Hi all, I’m writing you regarding the speed limit mapping in Australia. Specifically, how would you add the speed limit on a motorway link where the speed limit sign appears in the field towards the end/in the middle of the link? In Qld at least (& I think Aust-wide) speed limits officially change at the sign - you may start accelerating as you pass it, not before; but you must start slowing early so you're at the lower limit as you pass the sign. Please take a look at the following example: https://www.openstreetmap.org/way/37282555. Here, there is a speed limit sign of 100 (SL100 hereafter) in the middle of the motorway link. You can see the sign here: https://www.mapillary.com/app/?focus=photo&pKey=cTDOkTXf0M0gVBjem4mt9A&lat=-27.664412022684786&lng=152.7436576757009&z=17<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.mapillary.com%2fapp%2f%3ffocus%3dphoto%26pKey%3dcTDOkTXf0M0gVBjem4mt9A%26lat%3d-27.664412022684786%26lng%3d152.7436576757009%26z%3d17&c=E,1,Dr9tRyo_JV7aLrJTI5H8eB_cGPOQYwUzZHu7vqnOcZUHg9O7IuFsCaZZnaTALecbyZ-jbVucut0EZjGJmPSAbExe_qqJQFEGjOtx8VOC58l8myJR5XQY&typo=1>. In which way would you add the speed limit information in the above-mentioned case: 1. maxspeed=80 until the SL100 sign and maxspeed=100 until the end of the link? I'm not sure where you got 80 from? I can only see a 60 sign at the start of the link https://www.mapillary.com/app/?lat=-27.663581886206885&lng=152.73979205152136&z=17&x=0.49548370263958935&y=0.50767663189853&zoom=0&pKey=B-1LcWLyCAjIQqhNjTQ7AQ<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.mapillary.com%2fapp%2f%3flat%3d-27.663581886206885%26lng%3d152.73979205152136%26z%3d17%26x%3d0.49548370263958935%26y%3d0.50767663189853%26zoom%3d0%26pKey%3dB-1LcWLyCAjIQqhNjTQ7AQ&c=E,1,VJy80ltGkmFEycG1wSxU0pFFSi4mqdzKkwIchqbf-uGbYO0hoK9VYP3-n_3S9-g4xBFJwAWHD2gHsrDeoWScqeT9zGXMl_oFkwA_02lw&typo=1>, & speed then jumps to 100 just before merging out onto the Cunningham Highway 1. maxspeed=80 represents the speed limit of the trunk way from which the motorway link leaves. Welcome to Australian roads! Just because it's a trunk road, doesn't necessarily mean it's got an appropriate speed limit :-( 1. nothing until the SL100 sign but maxspeed=100 starting with the appearance of the sign in the field? 60, not "nothing" between the 2 signs, then 100. Hope that helps! Thanks Graeme
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