F3.1.1.5.18 Manage Urban Traffic Speeds and Headways

Frame Repository / Frame Functional View / Functionality / Functional Area F3 - Manage Traffic / F3. Manage Traffic / F3.1 Provide Traffic Control / F3.1.1 Provide Urban Traffic Management / F3.1.1.5 Provide Urban Traffic Management Facilities / F3.1.1.5.18 Manage Urban Traffic Speeds and Headways

Project:

F3.1.1.5 Provide Urban Traffic Management Facilities

F3.1.1.5.18 Manage Urban Traffic Speeds and Headways : Public <<FRAME_Low_Level_Function>> FRAME_Low_Level_Function

Created:	24.10.2019 12:44:25
Modified:	08.09.2021 11:24:28

Project:
Author:	Update after transfer
Version:	5.0
Phase:	1.0
Status:	Proposed
Complexity:	Easy
Difficulty:
Priority:
Multiplicity:
Advanced:
UUID:	{2CF84C82-C878-4b8a-A45B-2748AE33CC2C}
Appears In:	DFD F3.1.1.5 Provide Urban Traffic Management Facilities, Functional Tree of F3.1.1 Provide Traffic Control

This Function shall be capable of providing the following facilities: (1) The ability to provide the management of vehicle speed and headway settings within the urban road network. (2) The ability to receive commands to implement legal speed settings, plus both suggested speed and headway settings from either the functionality providing the Road Network Operator interface, or the urban traffic management functionality, or as part of an incident, demand management, or environmental strategy. (3) The ability to ensure that requests from the functionality providing the Road Network Operator interface take priority and override those from the urban traffic management functionality, but not those that are part of an incident, demand management, or environmental strategy. (4) The ability to send speed and headway settings to the functionality that is responsible for the output of messages to Drivers of vehicles using the urban road network, both at the roadside and in the Vehicle, as well as to other functionality from which it can be sent to other parts of the system, to the Broadcaster entity. (5) The ability to send the legal speed settings to the digital map data provider entity in case it needs to be used in future digital map updates.

Associations To
Associations From
Requirements
Advanced

Element	Source Role	Target Role
«FRAME_Low_Level_Data_Flow» mt.pshvs_urban_suggested_speeds_and_headways FRAME_Low_Level_Data_Flow «IN»	Name:	Name:
Details:
«FRAME_Low_Level_Data_Flow» mt.pshvs_urban_legal_speed_limits FRAME_Low_Level_Data_Flow «IN»	Name:	Name:
Details:
«FRAME_Low_Level_Data_Flow» mt_urban_speed_limit_l&s_commands FRAME_Low_Level_Data_Flow «IN»	Name:	Name:
Details:
«FRAME_Low_Level_Data_Flow» mt_urban_speed_limit_changes FRAME_Low_Level_Data_Flow «IN»	Name:	Name:
Details:
«FRAME_High_Level_Function» F3.1.1.5 Provide Urban Traffic Management Facilities FRAME_High_Level_Function «Componentof»	Name:	Name:
Details:
«FRAME_Low_Level_Data_Flow» mt_updatred_urban_speed_limits FRAME_Low_Level_Data_Flow «IN»	Name:	Name:
Details:

Element	Source Role	Target Role
«FRAME_User_Need» 7.4.8.9 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_Low_Level_Data_Flow» mt_urban_roads_legal_speeds FRAME_Low_Level_Data_Flow «OUT»	Name:	Name:
Details:
«FRAME_User_Need» 7.5.1.25 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.3.9 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.1.7.1 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.5.1 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.4.1 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.4.8 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.4.11 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.1.7.5 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.1.0.10 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_Low_Level_Data_Flow» mt_urban_speed_and_headway_settings FRAME_Low_Level_Data_Flow «OUT»	Name:	Name:
Details:
«FRAME_User_Need» 7.1.7.2 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.5.1.26 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.1.7.6 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.1.7.3 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_Low_Level_Data_Flow» mt_operator_urban_speed_override FRAME_Low_Level_Data_Flow «OUT»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.4.6 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.4.12 FRAME_User_Need «Servedby»	Name:	Name:
Details:
«FRAME_User_Need» 7.4.4.7 FRAME_User_Need «Servedby»	Name:	Name:
Details:

Requirement	Type	Status	Difficulty	Priority	Stability
Functional	Functional	Proposed	Medium	Medium	Moderate
Details: (a) continuously monitor for receipt of the input data flows;<br/>(b) when the urban road legal speeds data flow is received in (a) store its contents locally for future use;<br/>(c) as a result of (b) send the new urban speed limits in the urban legal speed limits data flow to the Provide Support for Host Vehicle Systems functionality;<br/>(d) when either the urban speed and headway settings or the operator urban speed override data flows are received in (a) implement the speed that they contain by sending the new speed limit in the urban speed limit changes and updated urban speed limits data flows;<br/>(e) in (d) the speed limit in the operator urban speed override shall take precedence over the value in the urban speed setting data flow, except where this is provided as part of an incident, demand or environmental management strategy;<br/>(f) as a result of (d) and (e) also send the new speed limit and headway to the Provide Support for Host Vehicle Systems functionality in the urban suggested speeds and headways data flow and to the Output Lane & Speed Commands to Urban Roads function in the urban speed l&s commands data flow.<br/>

Property	Value
isReadOnly:	false
isFinalSpecialization:	0