This solution is used within Canada and the U.S.. It combines standards associated with US: GTFS with those for I–I: Secure Internet (ITS). The US: GTFS standards include upper–layer standards required to implement public, transit–related communications. The I–I: Secure Internet (ITS) standards include lower–layer standards that support secure communications between ITS equipment using X.509 or IEEE 1609.2 security certificates.
| Level | DocNum | FullName | Description |
|---|
| Mgmt | IETF RFC 3411 | An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks | This standard (RFC) defines the basic architecture for SNMPv3 and includes the definition of information objects for managing the SNMP entity's architecture. |
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| Mgmt | IETF RFC 3412 | Message Processing and Dispatching for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that assists in managing the message processing and dispatching subsystem of an SNMP entity. |
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| Mgmt | IETF RFC 3413 | Simple Network Management Protocol (SNMP) Applications | This standard (RFC) includes MIBs that allow for the configuration and management of remote Targets, Notifications, and Proxys. |
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| Mgmt | IETF RFC 3414 | User–based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3) | This standard (RFC) contains a MIB that assists in configuring and managing the user–based security model. |
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| Mgmt | IETF RFC 3415 | View–based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that supports the configuration and management of the View–based access control model of SNMP. |
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| Mgmt | IETF RFC 3416 | Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines the message structure and protocol operations used by SNMPv3. |
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| Mgmt | IETF RFC 3418 | Management Information Base (MIB) for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines the MIB to configure and manage an SNMP entity. |
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| Mgmt | IETF RFC 4293 | Management Information Base for the Internet Protocol (IP) | This standard (RFC) defines the MIB that manages an IP entity. |
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| Security | IETF RFC 5280 | Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile | This standard (RFC) defines how to use X.509 certificates for secure communications over the Internet. |
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| Security | IETF RFC 8446 | The Transport Layer Security (TLS) Protocol | This standard (RFC) specifies Version 1.3 of the Transport Layer Security (TLS) protocol. The TLS protocol provides communications security over the Internet. The protocol allows client/server applications to communicate in a way that is designed to prevent eavesdropping, tampering, or message forgery. |
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| ITS Application Entity | GTFS Realtime | General Transit Feed Specification Realtime | This document defines a feed specification that allows public transportation agencies to provide real–time updates about their fleet to application developers. It is an extension to GTFS (General Transit Feed Specification), an open data format for public transportation schedules and associated geographic information. GTFS Realtime was designed around ease of implementation, good GTFS interoperability and a focus on passenger information. |
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| ITS Application Entity | GTFS | General Transit Feed Specification | This document defines a common (open data) format for exchanging public transportation schedules and associated geographic information. |
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| Facilities | IETF RFC 9110 | HTTP Semantics | The Hypertext Transfer Protocol (HTTP) is a stateless application–level protocol for distributed, collaborative, hypertext information systems. This document describes the overall architecture of HTTP, establishes common terminology, and defines aspects of the protocol that are shared by all versions. In this definition are core protocol elements, extensibility mechanisms, and the "http" and "https" Uniform Resource Identifier (URI) schemes. |
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| Facilities | IETF RFC 9112 | HTTP/1.1 | The Hypertext Transfer Protocol (HTTP) is a stateless application–level protocol for distributed, collaborative, hypertext information systems. This document specifies the HTTP/1.1 message syntax, message parsing, connection management, and related security concerns. |
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| Facilities | ISO 21320–1 | Information technology — Document Container File — Part 1: Core | ISO/IEC 21320–1 specifies the core requirements for 1) document container files, and 2) implementations that produce and/or consume document container files. It normatively references the Zip File Format Specification version 6.3.3 of PKWARE(R) Inc. Document container files are conforming Zip files as specified by that document. |
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| Facilities | IETF RFC 4180 | Common Format and MIME Type for Comma–Separated Values (CSV) Files | This standard (RFC) documents the format used for Comma–Separated Values (CSV) files and registers the associated MIME type "text/csv". |
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| Facilities | IETF RFC 7159 | The JavaScript Object Notation (JSON) Data Interchange Format | The JavaScript Object Notation (JSON), a lightweight, text–based, language–independent data interchange format. It was derived from the ECMAScript Programming Language Standard. JSON defines a small set of formatting rules for the portable representation of structured data. This document removes inconsistencies with other specifications of JSON, repairs specification errors, and offers experience–based interoperability guidance. |
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| TransNet | IETF RFC 4291 | IP Version 6 Addressing Architecture | This standard (RFC) defines the addressing architecture of the IP Version 6 (IPv6) protocol. It includes the IPv6 addressing model, text representations of IPv6 addresses, definition of IPv6 unicast addresses, anycast addresses, and multicast addresses, and an IPv6 node's required addresses. |
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| TransNet | IETF RFC 4443 | Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification | This standard (RFC) defines the control messages to manage IPv6. |
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| TransNet | IETF RFC 8200 | Internet Protocol, Version 6 | This document specifies version 6 of the Internet Protocol (IPv6). |
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| TransNet | IETF RFC 9293 | Transmission Control Protocol | This document specifies the Transmission Control Protocol (TCP). TCP is an important transport–layer protocol in the Internet protocol stack, and it has continuously evolved over decades of use and growth of the Internet. Over this time, a number of changes have been made to TCP as it was specified in RFC 793, though these have only been documented in a piecemeal fashion. This document collects and brings those changes together with the protocol specification from RFC 793. This document obsoletes RFC 793, as well as RFCs 879, 2873, 6093, 6429, 6528, and 6691 that updated parts of RFC 793. It updates RFCs 1011 and 1122, and it should be considered as a replacement for the portions of those documents dealing with TCP requirements. It also updates RFC 5961 by adding a small clarification in reset handling while in the SYN–RECEIVED state. The TCP header control bits from RFC 793 have also been updated based on RFC 3168. |
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| Access | | Internet Subnet Alternatives | A set of alternative standards that includes any Subnet Layer method of connecting to the Internet. |
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Multiple significant and minor issues. For existing deployments, the chosen solution is likely deficient in security or management capabilities, and the issues should be reviewed and upgrades developed as needed. Some solutions in this category may also be becoming obsolete from an interoperability perspective and if this is the case, then upgrades should be planned as soon as possible. For new deployments, the solution may be viable for pilots when applied to the triples it supports; such pilot deployments should consider a path to addressing these issues as a part of their design activities. The solution does not provide sufficient interoperability, management, and security to enable proper, full–scale deployment without additional work.
| Source | Destination | Flow |
|---|
| Chicago Transit Authority ATSS System | Chicago Transit Authority Active Transit Station Signs | transit traveler information |
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| Chicago Transit Authority ATSS System | Chicago Transit Authority BusInfo Signs | transit traveler information |
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| Chicago Transit Authority Bus Info System | Chicago Transit Authority BusInfo Signs | transit traveler information |
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| Chicago Transit Authority Bus Info System | Chicago Transit Authority Control Center | transit service coordination |
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| Chicago Transit Authority Bus Info System | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
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| Chicago Transit Authority Bus Info System | RTA/NITA Transit Hub | transit service coordination |
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| Chicago Transit Authority Cash Revenue Collection Center | Chicago Transit Authority Cash Fare Collection Equipment | transit traveler information |
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| Chicago Transit Authority Control Center | Chicago Transit Authority ATSS System | transit service coordination |
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| Chicago Transit Authority Control Center | Chicago Transit Authority Bus Info System | transit service coordination |
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| Chicago Transit Authority Control Center | City of Chicago TMC | transit system data |
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| Chicago Transit Authority Control Center | IDOT District 1 Traffic Systems Center (TSC) | transit system data |
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| Chicago Transit Authority Control Center | Independent School District Dispatch | transit service coordination |
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| Chicago Transit Authority Control Center | Midway Airport Operations Center | transit system data |
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| Chicago Transit Authority Control Center | OHare Airport Operations Center | transit system data |
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| Chicago Transit Authority Control Center | Pace Control Center (IBS) | transit service coordination |
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| Chicago Transit Authority Control Center | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
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| Chicago Transit Authority Control Center | RTA InfoTrans Signs | transit traveler information |
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| Chicago Transit Authority Control Center | RTA/NITA Transit Hub | transit service coordination |
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| Independent School District Dispatch | Chicago Transit Authority Control Center | transit service coordination |
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| Independent School District Dispatch | Municipal Transit Operations | transit service coordination |
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| Independent School District Dispatch | Pace Control Center (IBS) | transit service coordination |
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| Independent School District Dispatch | Private Taxi Dispatch | transit service coordination |
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| Kenosha Transit Dispatch | Metra Consolidated Control Facility | transit service coordination |
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| Metra Consolidated Control Facility | City of Chicago TMC | transit system data |
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| Metra Consolidated Control Facility | Cook County TMC | transit system data |
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| Metra Consolidated Control Facility | DuPage County TMC | transit system data |
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| Metra Consolidated Control Facility | IDOT District 1 Bureau of Traffic – Arterial Signal Operations | transit system data |
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| Metra Consolidated Control Facility | IDOT District 1 Traffic Systems Center (TSC) | transit system data |
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| Metra Consolidated Control Facility | Kane County TMC | transit system data |
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| Metra Consolidated Control Facility | Kendall County TMC | transit system data |
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| Metra Consolidated Control Facility | Kenosha Transit Dispatch | transit service coordination |
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| Metra Consolidated Control Facility | Lake County PASSAGE TMC | transit system data |
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| Metra Consolidated Control Facility | McHenry County TMC | transit system data |
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| Metra Consolidated Control Facility | Metra GPS Center (TIMS) | transit service coordination |
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| Metra Consolidated Control Facility | Metra Public Address System | transit traveler information |
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| Metra Consolidated Control Facility | Municipal Transit Operations | transit service coordination |
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| Metra Consolidated Control Facility | NICTD Dispatch | transit service coordination |
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| Metra Consolidated Control Facility | Pace Control Center (IBS) | transit service coordination |
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| Metra Consolidated Control Facility | Private Taxi Dispatch | transit service coordination |
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| Metra Consolidated Control Facility | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
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| Metra Consolidated Control Facility | RTA/NITA Transit Hub | transit service coordination |
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| Metra Consolidated Control Facility | Will County TMC | transit system data |
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| Metra GPS Center (TIMS) | Metra Consolidated Control Facility | transit service coordination |
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| Metra GPS Center (TIMS) | Metra Passenger Information Display System | transit service coordination |
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| Metra GPS Center (TIMS) | Metra Public Address System | transit traveler information |
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| Metra GPS Center (TIMS) | Metra Visual Information Display System (VIDS) | transit traveler information |
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| Metra GPS Center (TIMS) | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
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| Metra GPS Center (TIMS) | RTA/NITA Transit Hub | transit service coordination |
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| Metra Passenger Information Display System | Metra GPS Center (TIMS) | transit service coordination |
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| Metra Passenger Information Display System | Metra Public Address System | transit traveler information |
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| Metra Passenger Information Display System | Metra Visual Information Display System (VIDS) | transit traveler information |
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| Metra Passenger Information Display System | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
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| Municipal Transit Operations | Independent School District Dispatch | transit service coordination |
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| Municipal Transit Operations | Metra Consolidated Control Facility | transit service coordination |
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| Municipal Transit Operations | Private Bus Dispatch | transit service coordination |
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| Municipal Transit Operations | RTA/NITA Transit Hub | transit service coordination |
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| NICTD Dispatch | Metra Consolidated Control Facility | transit service coordination |
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| NICTD Dispatch | Pace Control Center (IBS) | transit service coordination |
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| Other Regional Paratransit Dispatch | Pace Control Center (IBS) | transit service coordination |
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| Other Regional Paratransit Dispatch | Pace Regional Paratransit Dispatch | transit service coordination |
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| Pace BusInfo System | Pace BusInfo Signs | transit traveler information |
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| Pace BusInfo System | Pace Control Center (IBS) | transit service coordination |
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| Pace BusInfo System | RTA/NITA Transit Hub | transit service coordination |
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| Pace Control Center (IBS) | Chicago Transit Authority Control Center | transit service coordination |
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| Pace Control Center (IBS) | City of Chicago TMC | transit system data |
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| Pace Control Center (IBS) | Cook County TMC | transit system data |
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| Pace Control Center (IBS) | DuPage County TMC | transit system data |
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| Pace Control Center (IBS) | Independent School District Dispatch | transit service coordination |
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| Pace Control Center (IBS) | Kane County TMC | transit system data |
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| Pace Control Center (IBS) | Lake County PASSAGE TMC | transit system data |
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| Pace Control Center (IBS) | McHenry County TMC | transit system data |
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| Pace Control Center (IBS) | Metra Consolidated Control Facility | transit service coordination |
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| Pace Control Center (IBS) | NICTD Dispatch | transit service coordination |
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| Pace Control Center (IBS) | Other Regional Paratransit Dispatch | transit service coordination |
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| Pace Control Center (IBS) | Pace BusInfo System | transit service coordination |
|---|
| Pace Control Center (IBS) | Pace Regional Paratransit Dispatch | transit service coordination |
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| Pace Control Center (IBS) | Private Bus Dispatch | transit service coordination |
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| Pace Control Center (IBS) | Private Taxi Dispatch | transit service coordination |
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| Pace Control Center (IBS) | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
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| Pace Control Center (IBS) | RTA/NITA Transit Hub | transit service coordination |
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| Pace Control Center (IBS) | Will County TMC | transit system data |
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| Pace Regional Paratransit Dispatch | Grundy County TMC | transit system data |
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| Pace Regional Paratransit Dispatch | Kendall County TMC | transit system data |
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| Pace Regional Paratransit Dispatch | Other Regional Paratransit Dispatch | transit service coordination |
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| Pace Regional Paratransit Dispatch | Pace Control Center (IBS) | transit service coordination |
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| Pace Regional Paratransit Dispatch | Private Bus Dispatch | transit service coordination |
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| Pace Regional Paratransit Dispatch | Private Taxi Dispatch | transit service coordination |
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| Pace Regional Paratransit Dispatch | Public/Non–Profit Paratransit Services | transit service coordination |
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| Pace Regional Paratransit Dispatch | RTA/NITA Transit Hub | transit service coordination |
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| Private Bus Dispatch | Municipal Transit Operations | transit service coordination |
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| Private Bus Dispatch | Pace Control Center (IBS) | transit service coordination |
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| Private Bus Dispatch | Pace Regional Paratransit Dispatch | transit service coordination |
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| Private Bus Dispatch | Public/Non–Profit Paratransit Services | transit service coordination |
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| Private Bus Dispatch | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
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| Private Bus Dispatch | RTA/NITA Transit Hub | transit service coordination |
|---|
| Private Taxi Dispatch | Independent School District Dispatch | transit service coordination |
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| Private Taxi Dispatch | Metra Consolidated Control Facility | transit service coordination |
|---|
| Private Taxi Dispatch | Pace Regional Paratransit Dispatch | transit service coordination |
|---|
| Private Taxi Dispatch | RTA/NITA Transit Hub | transit service coordination |
|---|
| Public/Non–Profit Paratransit Services | Pace Regional Paratransit Dispatch | transit service coordination |
|---|
| Public/Non–Profit Paratransit Services | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
|---|
| Public/Non–Profit Paratransit Services | RTA/NITA Transit Hub | transit service coordination |
|---|
| Regional Transportation Authority Travel Information Center (TIC) | Chicago Transit Authority Control Center | transit service coordination |
|---|
| Regional Transportation Authority Travel Information Center (TIC) | Metra Consolidated Control Facility | transit service coordination |
|---|
| Regional Transportation Authority Travel Information Center (TIC) | Metra GPS Center (TIMS) | transit service coordination |
|---|
| Regional Transportation Authority Travel Information Center (TIC) | Pace Control Center (IBS) | transit service coordination |
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| Regional Transportation Authority Travel Information Center (TIC) | Pace Regional Paratransit Dispatch | transit service coordination |
|---|
| Regional Transportation Authority Travel Information Center (TIC) | Private Bus Dispatch | transit service coordination |
|---|
| RTA/NITA Transit Hub | Chicago Transit Authority Active Transit Station Signs | transit traveler information |
|---|
| RTA/NITA Transit Hub | Chicago Transit Authority Bus Info System | transit service coordination |
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| RTA/NITA Transit Hub | Chicago Transit Authority BusInfo Signs | transit traveler information |
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| RTA/NITA Transit Hub | Chicago Transit Authority Control Center | transit service coordination |
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| RTA/NITA Transit Hub | Gateway Traveler Information System GTIS | transit system data |
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| RTA/NITA Transit Hub | Independent School District Dispatch | transit service coordination |
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| RTA/NITA Transit Hub | Metra Consolidated Control Facility | transit service coordination |
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| RTA/NITA Transit Hub | Metra GPS Center (TIMS) | transit service coordination |
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| RTA/NITA Transit Hub | Metra Public Address System | transit traveler information |
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| RTA/NITA Transit Hub | Metra Visual Information Display System (VIDS) | transit traveler information |
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| RTA/NITA Transit Hub | Municipal Transit Operations | transit service coordination |
|---|
| RTA/NITA Transit Hub | Pace BusInfo Signs | transit traveler information |
|---|
| RTA/NITA Transit Hub | Pace BusInfo System | transit service coordination |
|---|
| RTA/NITA Transit Hub | Pace Control Center (IBS) | transit service coordination |
|---|
| RTA/NITA Transit Hub | Pace Regional Paratransit Dispatch | transit service coordination |
|---|
| RTA/NITA Transit Hub | Private Bus Dispatch | transit service coordination |
|---|
| RTA/NITA Transit Hub | Public/Non–Profit Paratransit Services | transit service coordination |
|---|
| RTA/NITA Transit Hub | Regional Transportation Authority Travel Information Center (TIC) | transit service coordination |
|---|
| RTA/NITA Transit Hub | RTA InfoTrans Signs | transit traveler information |
|---|