Trait TransportLinkOps 

pub trait TransportLinkOps {
    // Required methods
    fn link_density(&self, link_id: LinkId) -> f64;
    fn link_speed(&self, link_id: LinkId) -> f64;
    fn link_free_flow_time(&self, link_id: LinkId) -> f64;
    fn link_travel_time(&self, link_id: LinkId) -> f64;
    fn agent_speed(&self, id: u64) -> Result<f64, LinkSpaceError>;
    fn agent_speed_decision<P: QueuePolicy>(
        &self,
        id: u64,
        policy: &P,
    ) -> Result<SpeedDecision, LinkSpaceError>;
    fn agent_speed_with_policy<P: QueuePolicy>(
        &self,
        id: u64,
        policy: &P,
    ) -> Result<f64, LinkSpaceError>;
    fn volume_capacity_ratio(&self, link_id: LinkId, time_window_s: f64) -> f64;
}

Transport-specific operations over LinkSpace<LinkProperties>.

These helpers define a small reusable baseline policy layer. They are suitable for simple transport scenarios and examples, but they do not claim calibrated or reference-grade operational realism.

Required Methods

fn link_density(&self, link_id: LinkId) -> f64

Per-link density computed from current occupancy, link length, and lane count.

fn link_speed(&self, link_id: LinkId) -> f64

Per-link snapshot speed computed from the configured fundamental diagram.

fn link_free_flow_time(&self, link_id: LinkId) -> f64

Free-flow traversal time using static geometry and free-flow speed.

fn link_travel_time(&self, link_id: LinkId) -> f64

Snapshot traversal time using current link_speed.

fn agent_speed(&self, id: u64) -> Result<f64, LinkSpaceError>

Simple FIFO/gap-limited speed estimate for one agent on its current link.

fn agent_speed_decision<P: QueuePolicy>( &self, id: u64, policy: &P, ) -> Result<SpeedDecision, LinkSpaceError>

Speed decision for one agent using an explicit queue policy.

fn agent_speed_with_policy<P: QueuePolicy>( &self, id: u64, policy: &P, ) -> Result<f64, LinkSpaceError>

Speed estimate for one agent using an explicit queue policy.

fn volume_capacity_ratio(&self, link_id: LinkId, time_window_s: f64) -> f64

Simple volume/capacity ratio over an externally supplied time window.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl TransportLinkOps for LinkSpace<LinkProperties>

fn link_density(&self, link_id: LinkId) -> f64

fn link_speed(&self, link_id: LinkId) -> f64

fn link_free_flow_time(&self, link_id: LinkId) -> f64

fn link_travel_time(&self, link_id: LinkId) -> f64

fn agent_speed(&self, id: u64) -> Result<f64, LinkSpaceError>

fn agent_speed_decision<P: QueuePolicy>( &self, id: u64, policy: &P, ) -> Result<SpeedDecision, LinkSpaceError>

fn agent_speed_with_policy<P: QueuePolicy>( &self, id: u64, policy: &P, ) -> Result<f64, LinkSpaceError>

fn volume_capacity_ratio(&self, link_id: LinkId, time_window_s: f64) -> f64

Implementors