[OSRM-talk] Keep left and keep left and ...

[Brad Colbert]

Hello Roland,

First, thank you for the prompt response.  In short, I'm trying to model a
truck profile.  Strangely, I'm not finding much available in the wild so
I'm having to modify what I have found.

The only thing I can think of that might be related is the turn_penalty.

A diff of the changes to the standard car.lua:


17c17

<       max_speed_for_map_matching      = 150/3.6, -- 150kmph -> m/s

---

>       max_speed_for_map_matching      = 180/3.6, -- 180kmph -> m/s

25c25

<       u_turn_penalty                 = 30,

---

>       u_turn_penalty                 = 20,

36c36

<     turn_penalty              = 25,

---

>     turn_penalty              = 7.5,

44,45c42,43

<     vehicle_height = 4, -- in meters

<     vehicle_width = 2.6, -- in meters

---

>     vehicle_height = 2.0, -- in meters, 2.0m is the height slightly above
biggest SUVs

>     vehicle_width = 1.9, -- in meters, ways with narrow tag are
considered narrower than 2.2m

48,49c46,47

<     vehicle_length = 20, -- in meters, 4.8m is the length of large or
family car

<     vehicle_weight = 15000, -- in kilograms

---

>     vehicle_length = 4.8, -- in meters, 4.8m is the length of large or
family car

>     vehicle_weight = 2000, -- in kilograms

65c63,64

<       'height_restrictor'

---

>       'height_restrictor',

>       'arch'

160,177d158

<     highway_penalties = {

<       motorway        = 1,

<       motorway_link   = 1,

<       trunk           = 1,

<       trunk_link      = 1,

<       primary         = 1,

<       primary_link    = 1,

<       secondary       = 1,

<       secondary_link  = 1,

<       tertiary        = 0.9,

<       tertiary_link   = 0.9,

<       unclassified    = 0.8,

<       residential     = 0.7,

<       living_street   = 0.3,

<       service         = 0.2,

<       track           = 0.1

<     },

<

291a273,274

>       ["be-bru:rural"] = 70,

>       ["be-bru:urban"] = 30,

456,460d438

<     -- set penalty to try to follow legal access restriction

<     WayHandlers.handle_weight,

<     WayHandlers.handle_length,

<     WayHandlers.handle_hgv_access,


On Fri, May 7, 2021 at 10:56 AM Roland Swingler <roland at beeline.co> wrote:

> Can you tell us a bit more about which profile (car, bike, foot etc.)
> you're modifying and how you're modifying it? Is there any pattern to the
> types of Way where you see this?
>
> I know that the bike profile has (or at least used to have) would allow
> routing in the opposite direction of oneway streets with sidewalks (with an
> implied "dismount and walk") which could lead to unwanted forks in the turn
> by turn guidance for example.
>
> Thanks,
> Roland
>
> On Fri, 7 May 2021 at 17:40, Brad Colbert via OSRM-talk <
> osrm-talk at openstreetmap.org> wrote:
>
>> Hello Everyone,
>>
>> I'm working on modifying a profile.  Now when I run, the turn-by-turn has
>> a ton of "Keep left at the fork" lines and I'm wondering why and how/if I
>> can get rid of them.
>>
>> Thank you,
>> Brad
>>
>> --
>> Brad Colbert
>> Sr. Data Scientist
>> (four eight zero) two nine zero - three nine nine seven <14802903997>
>>
>> _______________________________________________
>> OSRM-talk mailing list
>> OSRM-talk at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/osrm-talk
>>
>
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