Car Profile. Route by supporting physical limitation of height and weight

profiles/car.lua

@@ -37,6 +37,10 @@ function setup()
     turn_bias                 = 1.075,
     cardinal_directions       = false,
 
+    -- Size of the vehicle, to be limited by physical restriction of the way
+    vehicle_height = 2.5, -- in metters, 2.5m is the height of van
+    vehicle_width = 1.9, -- in metters, ways with narrow tag are considered narrower than 2.2m
+
     -- a list of suffixes to suppress in name change instructions. The suffixes also include common substrings of each other
     suffix_list = {
       'N', 'NE', 'E', 'SE', 'S', 'SW', 'W', 'NW', 'North', 'South', 'West', 'East', 'Nor', 'Sou', 'We', 'Ea'
@@ -357,6 +361,8 @@ function process_way(profile, way, result, relations)
     -- toll=yes and oneway=reversible
     WayHandlers.blocked_ways,
     WayHandlers.avoid_ways,
+    WayHandlers.handle_height,
+    WayHandlers.handle_width,
 
     -- determine access status by checking our hierarchy of
     -- access tags, e.g: motorcar, motor_vehicle, vehicle

profiles/lib/way_handlers.lua

@@ -8,6 +8,7 @@ local get_turn_lanes = require("lib/guidance").get_turn_lanes
 local set_classification = require("lib/guidance").set_classification
 local get_destination = require("lib/destination").get_destination
 local Tags = require('lib/tags')
+local Measure = require("lib/measure")
 
 WayHandlers = {}
 
@@ -429,6 +430,47 @@ function WayHandlers.parse_maxspeed(source,profile)
   return n
 end
 
+-- handle maxheight tags
+function WayHandlers.handle_height(profile,way,result,data)
+  local keys = Sequence { 'maxheight:physical', 'maxheight' }
+  local forward, backward = Tags.get_forward_backward_by_set(way,data,keys)
+  forward = Measure.get_max_height(forward)
+  backward = Measure.get_max_height(backward)
+
+  if forward and forward < profile.vehicle_height then
+    result.forward_mode = mode.inaccessible
+  end
+
+  if backward and backward < profile.vehicle_height then
+    result.backward_mode = mode.inaccessible
+  end
+end
+
+-- handle maxwidth tags
+function WayHandlers.handle_width(profile,way,result,data)
+  local keys = Sequence { 'maxwidth:physical', 'maxwidth', 'width', 'est_width' }
+  local forward, backward = Tags.get_forward_backward_by_set(way,data,keys)
+  local narrow = way:get_value_by_key('narrow')
+
+  if ((forward and forward == 'narrow') or (narrow and narrow == 'yes')) and profile.vehicle_width > 2.2 then
+    result.forward_mode = mode.inaccessible
+  elseif forward then
+    forward = Measure.get_max_width(forward)
+    if forward and forward <= profile.vehicle_width then
+      result.forward_mode = mode.inaccessible
+    end
+  end
+
+  if ((backward and backward == 'narrow') or (narrow and narrow == 'yes')) and profile.vehicle_width > 2.2 then
+    result.backward_mode = mode.inaccessible
+  elseif backward then
+    backward = Measure.get_max_width(backward)
+    if backward and backward <= profile.vehicle_width then
+      result.backward_mode = mode.inaccessible
+    end
+  end
+end
+
 -- handle oneways tags
 function WayHandlers.oneway(profile,way,result,data)
   if not profile.oneway_handling then