Open-Harbor/osrm-backend
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Only penaltize bidirectional ways if they have 1 lane

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This commit is contained in:
Patrick Niklaus 2015-06-26 14:34:49 +02:00
parent dddde4ddab
commit 8a2652f53d
2 changed files with 12 additions and 2 deletions
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8
features/car/maxspeed.feature
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@ -112,3 +112,11 @@ OSRM will use 4/5 of the projected free-flow speed.
| primary | 15 | | 30 | 60 | 34 km/h | 59 km/h |
| primary | 15 | 1 | 30 | 60 | 15 km/h | 30 km/h |
Scenario: Car - Single lane streets only incure a penalty for two-way streets
Then routability should be
| highway | maxspeed | lanes | oneway | forw | backw |
| primary | 30 | 1 | yes | 34 km/h | |
| primary | 30 | 1 | -1 | | 34 km/h |
| primary | 30 | 1 | | 15 km/h | 15 km/h |
| primary | 30 | 2 | | 34 km/h | 34 km/h |

6
profiles/car.lua
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@ -412,11 +412,13 @@ function way_function (way, result)
end
end
local is_bidirectional = result.forward_mode ~= 0 and result.backward_mode ~= 0
-- scale speeds to get better avg driving times
if result.forward_speed > 0 then
local scaled_speed = result.forward_speed*speed_reduction + 11;
local penalized_speed = math.huge
if width <= 3 or lanes <= 1 then
if width <= 3 or (lanes <= 1 and is_bidirectional) then
penalized_speed = result.forward_speed / 2;
end
result.forward_speed = math.min(penalized_speed, scaled_speed)
@ -425,7 +427,7 @@ function way_function (way, result)
if result.backward_speed > 0 then
local scaled_speed = result.backward_speed*speed_reduction + 11;
local penalized_speed = math.huge
if width <= 3 or lanes <= 1 then
if width <= 3 or (lanes <= 1 and is_bidirectional) then
penalized_speed = result.backward_speed / 2;
end
result.backward_speed = math.min(penalized_speed, scaled_speed)