COTA Paratransit Vehicles




COTA offers door–to–door service on demand, the so–called Paratransit buses, for residents with disabilities. These vehicles are also equipped with CAD/AVL as well as an on–board electronic manifest.


StakeholderRoleRole Status
Central Ohio Transit Authority (COTA)OwnsExisting and Planned
Central Ohio Transit Authority (COTA)OwnsExisting

Physical Objects

Vehicle OBE
Transit Vehicle OBE
Basic Transit Vehicle

Functional Objects

Functional ObjectDescriptionUser Defined
ITS Communications Support'ITS Communications Support' provides means to send and receive messages to and from other ITS Objects. It provides mechanisms for scheduling and prioritizing communications traffic. It may also provide relay functions.False
Transit Vehicle On–Board Connection Protection'Transit Vehicle On–Board Connection Protection' monitors vehicle schedule performance and provides it to the transit center for connection protection processing. It receives operator instructions relating to managing connection protection and recognizes individual travelers who have arranged for connection protection and provides connection protection information to the transit center.False
Transit Vehicle On–Board Paratransit Operations'Transit Vehicle On–board Paratransit Operations' forwards paratransit and flexible–route dispatch requests to the operator and forwards acknowledgements to the center. It coordinates with, and assists the operator in managing multi–stop runs associated with demand responsive transit services including paratransit. It collects transit vehicle passenger data and makes it available to the center.False
Transit Vehicle On–Board Trip Monitoring'Transit Vehicle On–Board Trip Monitoring' tracks vehicle location, monitors fuel usage, collects operational status (doors opened/closed, running times, etc.) and sends the collected, time stamped data to the Transit Management Center.False
Transit Vehicle Pedestrian Safety'Transit Vehicle Pedestrian Safety' exchanges current location and motion information with pedestrian–carried devices in the vicinity and uses that information to warn the driver of pedestrians in the vehicle's path. Information from on–board sensors (e.g., radars and image processing) are used to augment the short range communications, if available. In addition to notifying the driver, control information can also be provided to support automated control functions that can avoid the collision.False
Transit Vehicle Schedule Management'Transit Vehicle Schedule Management' monitors schedule performance and identifies corrective actions when a deviation is detected. It provides two–way communication between the transit vehicle and center, enabling the center to communicate with the vehicle operator and monitor on–board systems.False
Transit Vehicle Signal Priority'Transit Vehicle Signal Priority' provides the capability for transit vehicles to determine eligibility for priority and request signal priority at signalized intersections, ramps, and interchanges through short range communication with traffic control equipment at the roadside.False
Transit Vehicle V2V Safety'Transit Vehicle V2V Safety' exchanges current vehicle location and motion information with other vehicles in the vicinity, uses that information to predict vehicle paths, and notifies the driver when the potential for an impending collision is detected. Information from on–board sensors (e.g., radars and image processing) are used to augment the V2V communications, if available. In addition to notifying the driver, control information can also be provided to support automated control functions that can avoid the collision. This object is similar to the 'Vehicle Basic V2V Safety', but it accounts for crash scenarios that are unique to transit vehicles (e.g., Vehicle Turning Right in Front of Bus). It is also stop–aware since stop locations pose specific crash threats for transit vehicles. Finally, the detection and control algorithms, filters, and timing account for bus performance and risk profiles associated with remote vehicles that are unique to transit.False
Vehicle Basic Safety Communication'Vehicle Basic Safety Communication' exchanges current vehicle location and motion information with other vehicles in the vicinity, uses that information to calculate vehicle paths, and warns the driver when the potential for an impending collision is detected. If available, map data is used to filter and interpret the relative location and motion of vehicles in the vicinity. Information from on–board sensors (e.g., radars and image processing) are also used, if available, in combination with the V2V communications to detect non–equipped vehicles and corroborate connected vehicle data. Vehicle location and motion broadcasts are also received by the infrastructure and used by the infrastructure to support a wide range of roadside safety and mobility applications. This object represents a broad range of implementations ranging from basic Vehicle Awareness Devices that only broadcast vehicle location and motion and provide no driver warnings to advanced integrated safety systems that may, in addition to warning the driver, provide collision warning information to support automated control functions that can support control intervention.False
Vehicle Control Automation'Vehicle Control Automation' provides lateral and/or longitudinal control of a vehicle to allow 'hands off' and/or 'feet off' driving, automating the steering, accelerator, and brake control functions. It builds on the sensors included in 'Vehicle Safety Monitoring' and 'Vehicle Control Warning' and uses the information about the area surrounding the vehicle to safely control the vehicle. It covers the range of incremental control capabilities from driver assistance systems that take over steering or acceleration/deceleration in limited scenarios with direct monitoring by the driver to full automation where all aspects of driving are automated under all roadway and environmental conditions.False
Vehicle Control Warning'Vehicle Control Warning' monitors areas around the vehicle and provides warnings to a driver so the driver can take action to recover and maintain safe control of the vehicle. It includes lateral warning systems that warn of lane departures and obstacles or vehicles to the sides of the vehicle and longitudinal warning systems that monitor areas in the vehicle path and provide warnings when headways are insufficient or obstacles are detected in front of or behind the vehicle. It includes on–board sensors, including radars and imaging systems, and the driver information system that provides the visual, audible, and/or haptic warnings to the driver.False
Vehicle Data Subscription Management'Vehicle Data Subscription Management' manages data subscriptions for an end user. It provides access to a catalog of available data, manages the necessary user information and rules that govern the data subscriptions, supports communications with data providers to collect data per the subscription rules, and makes the data available to the end user. It provides the local user interface through which a user can specify and manage subscriptions. It supports different mechanisms for collecting data for the end–user including one–time query–response as well as publish–subscribe services.False
Vehicle Intersection Warning'Vehicle Intersection Warning' uses V2V and V2I communications to monitor other connected vehicles at intersections and support the safe movement of the vehicle through the intersection. Driver warnings are provided and the application may also optionally take control of the vehicle to avoid collisions. The application will also notify the infrastructure and other vehicles if it detects an unsafe infringement on the intersection.False
Vehicle Map Management'Vehicle Map Management' supports map updates and makes current map and geometry data available to other applications. It manages map data on–board and provides map data to end–user applications that provide location–based services.False
Vehicle Situation Data Monitoring'Vehicle Situation Data Monitoring' is the highest–level representation of the functionality required to collect traffic and environmental situation data by monitoring and storing the experience of the vehicle as it travels through the road network. Collected data is aggregated into snapshots that are reported when communications is available and with flow control based on parameters provided by the infrastructure. Note that this functional object supports collection of data for areas remote from RSEs or other communications infrastructure.False
Vehicle System Executive'Vehicle System Executive' provides the operating system kernel and executive functions that manage the software configuration and operation and support computer resource management, security, and software installation and upgrade.False
Vehicle System Monitoring and Diagnostics'Vehicle System Monitoring and Diagnostics' includes on–board sensors and integrated self test software that monitors the condition of each of the vehicle systems and diagnostics that can be used to support vehicle maintenance. The status of the vehicle and ancillary equipment and diagnostic information is provided to the driver and service center.False

Physical Standards

SDODocument #TitleUser Defined
ISOISO 21217Intelligent transport systems — Communications access for land
mobiles (CALM) — Architecture

Interfaces To

(View Context Diagram)

Basic Vehicles
City of Columbus Connected Vehicle Roadside Equipment
City of Columbus Fire/EMS Emergency Vehicles
City of Columbus Light–Duty Vehicles
City of Columbus Police Vehicles
City of Columbus TERT
City of Columbus Traffic Signals
COTA Equipment and Fleet Service Facilities
COTA Paratransit Management System
COTA Supervisor Vehicles
COTA Transit Fixed–Route Vehicles
County and City CV Service Monitoring Systems
Freight Truck Vehicles
ITS Communications Equipment
Local Traffic Signals
ODOT Certification System
ODOT Connected Vehicle Roadside Equipment
ODOT Cooperative ITS Credentials Management System
ODOT CV Service Monitor System
ODOT Object Registration and Discovery System
ODOT Traffic Signals
Traveler Information Devices