Ohio DOT Traffic Signal Control Systems
Status
Existing
Description
Represent ODOT traffic signal control software. ODOT traffic signal systems range from fixed–schedule control systems to fully traffic responsive systems that dynamically adjust control plans and strategies based on current traffic conditions and priority requests.
Stakeholders
| Stakeholder | Role | Role Status |
|---|
| ODOT | Owns | Existing |
|---|
Physical Objects
Functional Objects
| Functional Object | Description | User 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 |
|---|
| ITS Management Support | 'ITS Management Support' provides management of the ITS Object. This includes management of regulatory information and policies, management of application processes, management of communication system configuration and update management, communications interfaces, protocol–specific techniques to ensure interoperability such as service advertisements, communications congestion management and interference management, local device states and communications information, billing management, fault management, service level and performance monitoring. | False |
|---|
| ITS Security Support | 'ITS Security Support' provides communications and system security functions to the ITS Object, including privacy protection functions. It may include firewall, intrusion management, authentication, authorization, profile management, identity management, cryptographic key management. It may include a hardware security module and security management information base. | False |
|---|
| TMC Intersection Safety | 'TMC Intersection Safety' controls and monitors RSEs that support stop sign, red light, and mixed use crossing violations. It configures the RSEs for the current intersection geometry and traffic signal control equipment at the intersection. Information that is currently being communicated to passing vehicles and the operational status of the field equipment is monitored by this application. The operational status of the field equipment is reported to operations personnel. | False |
|---|
Physical Standards
| SDO | Document # | Title | User Defined |
|---|
| ISO | ISO 21217 | Intelligent transport systems — Communications access for land
mobiles (CALM) — Architecture | False |
|---|
| NEMA | NEMA TS 8 | Cyber and Physical Security for Intelligent Transportation Systems (ITS) | False |
|---|
| NIST | NIST FIPS PUB 140–2 | Security Requirements for Cryptographic Modules | False |
|---|
Interfaces To
(View Context Diagram)