Struct map_model::Road

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pub struct Road {
Show 23 fields pub id: RoadID, pub osm_tags: Tags, pub turn_restrictions: Vec<(RestrictionType, RoadID)>, pub complicated_turn_restrictions: Vec<(RoadID, RoadID)>, pub orig_id: OriginalRoad, pub speed_limit: Speed, pub access_restrictions: AccessRestrictions, pub zorder: isize, pub percent_incline: f64, pub lanes: Vec<Lane>, pub center_pts: PolyLine, pub untrimmed_center_pts: PolyLine, pub trim_start: Distance, pub trim_end: Distance, pub src_i: IntersectionID, pub dst_i: IntersectionID, pub crosswalk_forward: bool, pub crosswalk_backward: bool, pub transit_stops: BTreeSet<TransitStopID>, pub modal_filter: Option<RoadFilter>, pub barrier_nodes: Vec<Distance>, pub crossing_nodes: Vec<(Distance, CrossingType)>, pub crossings: Vec<Crossing>,
}
Expand description

A Road represents a segment between exactly two Intersections. It contains Lanes as children.

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§id: RoadID§osm_tags: Tags§turn_restrictions: Vec<(RestrictionType, RoadID)>

self is ‘from’

§complicated_turn_restrictions: Vec<(RoadID, RoadID)>

self is ‘from’. (via, to). Only BanTurns.

§orig_id: OriginalRoad§speed_limit: Speed§access_restrictions: AccessRestrictions§zorder: isize§percent_incline: f64

[-1.0, 1.0] theoretically, but in practice, about [-0.25, 0.25]. 0 is flat, positive is uphill from src_i -> dst_i, negative is downhill.

§lanes: Vec<Lane>

Invariant: A road must contain at least one child. These are ordered from the left side of the road to the right, with that orientation determined by the direction of center_pts.

§center_pts: PolyLine

The physical center of the road, including sidewalks, after trimming to account for the intersection geometry. The order implies road orientation.

§untrimmed_center_pts: PolyLine

Like center_pts, but before any trimming for intersection geometry. This is preserved so that when modifying road width, intersection polygons can be calculated correctly.

§trim_start: Distance§trim_end: Distance§src_i: IntersectionID§dst_i: IntersectionID§crosswalk_forward: bool

Is there a tagged crosswalk near each end of the road?

§crosswalk_backward: bool§transit_stops: BTreeSet<TransitStopID>

Meaningless order

§modal_filter: Option<RoadFilter>

There’s either a modal filter on this road or not

§barrier_nodes: Vec<Distance>

Some kind of modal filter or barrier this distance along center_pts.

§crossing_nodes: Vec<(Distance, CrossingType)>

Some kind of crossing this distance along center_pts.

§crossings: Vec<Crossing>

Sorted by increasing distance

Implementations§

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impl Road

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pub fn lane_specs(&self) -> Vec<LaneSpec>

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pub fn shift_from_left_side( &self, width_from_left_side: Distance ) -> Result<PolyLine>

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pub(crate) fn dir_and_offset(&self, lane: LaneID) -> (Direction, usize)

lane must belong to this road. Offset 0 is the centermost lane on each side of a road, then it counts up from there. Note this is a different offset than offset!

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pub fn parking_to_driving(&self, parking: LaneID) -> Option<LaneID>

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pub(crate) fn speed_limit_from_osm(&self) -> Speed

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pub fn find_closest_lane<F: Fn(&Lane) -> bool>( &self, from: LaneID, filter: F ) -> Option<LaneID>

Includes off-side

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pub fn get_dir_change_pl(&self, map: &Map) -> PolyLine

This is the FIRST yellow line where the direction of the road changes. If multiple direction changes happen, the result is kind of arbitrary.

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pub fn get_half_width(&self) -> Distance

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pub fn get_width(&self) -> Distance

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pub fn get_thick_polygon(&self) -> Polygon

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pub fn length(&self) -> Distance

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pub fn get_half_polygon(&self, dir: Direction, map: &Map) -> Result<Polygon>

Creates the thick polygon representing one half of the road. For roads with multiple direction changes (like a two-way cycletrack adjacent to a regular two-way road), the results are probably weird.

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pub fn get_name(&self, lang: Option<&String>) -> String

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pub fn get_rank(&self) -> RoadRank

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pub fn get_detailed_rank(&self) -> usize

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pub fn is_light_rail(&self) -> bool

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pub fn is_footway(&self) -> bool

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pub fn is_service(&self) -> bool

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pub fn is_cycleway(&self) -> bool

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pub fn is_driveable(&self) -> bool

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pub fn common_endpoint(&self, other: &Road) -> CommonEndpoint

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pub fn endpoints(&self) -> Vec<IntersectionID>

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pub fn other_endpt(&self, i: IntersectionID) -> IntersectionID

Returns the other intersection of this road, panicking if this road doesn’t connect to the input TODO This should use CommonEndpoint

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pub fn is_private(&self) -> bool

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pub(crate) fn access_restrictions_from_osm(&self) -> AccessRestrictions

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pub fn get_zone<'a>(&self, map: &'a Map) -> Option<&'a Zone>

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pub fn is_extremely_short(&self) -> bool

Many roads wind up with almost no length, due to their representation in OpenStreetMap. In reality, these segments are likely located within the interior of an intersection. This method uses a hardcoded threshold to detect these cases.

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pub fn directed_id_from(&self, i: IntersectionID) -> DirectedRoadID

Get the DirectedRoadID pointing to the intersection. Panics if the intersection isn’t an endpoint.

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pub fn directed_id_to(&self, i: IntersectionID) -> DirectedRoadID

Get the DirectedRoadID pointing from the intersection. Panics if the intersection isn’t an endpoint.

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pub(crate) fn recreate_lanes(&mut self, lane_specs_ltr: Vec<LaneSpec>)

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pub fn get_lanes_between(&self, l1: LaneID, l2: LaneID) -> Vec<LaneID>

Returns all lanes located between l1 and l2, exclusive.

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pub fn high_stress_for_bikes(&self, map: &Map, dir: Direction) -> bool

A simple classification of if the directed road is stressful or not for cycling. Arterial roads without a bike lane match this. Why arterial, instead of looking at speed limits? Even on arterial roads with official speed limits lowered, in practice vehicles still travel at the speed suggested by the design of the road.

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pub fn oneway_for_driving(&self) -> Option<Direction>

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pub fn is_deadend_for_driving(&self, map: &Map) -> bool

Does either end of this road lead nowhere for cars? (Asking this for a non-driveable road may be kind of meaningless)

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impl Road

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pub(crate) fn children_forwards(&self) -> Vec<(LaneID, LaneType)>

These are ordered from closest to center lane (left-most when driving on the right) to farthest (sidewalk)

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pub(crate) fn children_backwards(&self) -> Vec<(LaneID, LaneType)>

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pub(crate) fn children(&self, dir: Direction) -> Vec<(LaneID, LaneType)>

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pub(crate) fn incoming_lanes( &self, i: IntersectionID ) -> Vec<(LaneID, LaneType)>

Returns lanes from the “center” going out

Trait Implementations§

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impl Clone for Road

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fn clone(&self) -> Road

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Road

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for Road

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for Road

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

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impl Freeze for Road

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impl RefUnwindSafe for Road

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impl Send for Road

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impl Sync for Road

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impl Unpin for Road

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impl UnwindSafe for Road

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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where T: Clone,

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type Owned = T

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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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where S: Into<Dispatch>,

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