| ID |
Requirement Description |
Source |
Allocation |
Criticality |
| SOS-1 |
ICMS
notify operators of incidents:
The ICMS
shall provide operators and participating dispatchers with notification of
incidents on State, County, and local roads (including transit incidents)
within 3 minutes from the time the incident is reported to the ICMS.
|
User Need 1 |
ICMS-Data
Hub; ICMS-EMS; ICMS-Traffic
Operations |
H |
| SOS-2 |
ICMS
notify operators of planned events:
The ICMS
shall provide operators and participating dispatchers with notification of
planned events that have been entered into the ICMS and
are expected to impact traffic at least a day in advance of the event. |
User Need 1 |
ICMS-Data
Hub; ICMS-Traffic
Operations |
H |
| SOS-3 |
Verification of incidents:
The ICMS shall provide
a mechanism for traffic, transit, and emergency operators to verify
incidents within 5 minutes of the incident being reported to the ICMS. |
User Need 2 |
ICMS-Data Hub;
ICMS-Traffic
Operations; ICMS-EMS |
H |
| SOS-4 |
ICMS inform
travelers pre-trip of travel times
The ICMS shall provide
travelers the currently available (within the last 2 minutes) travel times
on freeways, arterials, and transit routes. |
User Need 3, User Need 9 |
ICMS-Data Hub;
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-5 |
ICMS inform
travelers en-route of travel times
The ICMS shall provide
travelers en-route to their destination with the currently available
(within the last 5 minutes) travel times along freeways, arterials, and
transit routes. |
User Need 3, User Need 9 |
ICMS-Data Hub;
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-6 |
ICMS inform
travelers pre-trip of parking availability
During pre-trip
planning, the ICMS shall provide
travelers with the number of parking spaces currently available (within
the last 3 minutes) at park-and-ride facilities located within the
corridor based on the latest information available in the system. |
User Need 4 |
ICMS-Data Hub;
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-7 |
ICMS inform
travelers en-route of parking availability
The ICMS shall provide
en-route travelers with the number of parking spaces currently available
(within the last 3 minutes) at park-and-ride facilities located within the
corridor based on the latest information available in the system. |
User Need 4 |
ICMS-Data Hub;
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-8 |
ICMS calculate
freeway metrics
The ICMS shall
calculate the following corridor performance metrics for the freeway
network as a whole in both directions at least once every 2 minutes:
- Speed
- Volume
- Excess capacity
- Travel time deviation from average
|
User Need 5, User Need 18 |
ICMS-Data Hub;
ICMS-ASG; ICMS-Traffic
Operations |
H |
| SOS-9 |
ICMS calculate
arterial metrics
The ICMS shall
calculate the following corridor performance metrics for the arterial
network as a whole in both directions at least once every 2 minutes:
- Speed
- Volume
- Excess capacity
- Travel time deviation from average
|
User Need 5, User Need 18 |
ICMS-Data Hub;
ICMS-ASG; ICMS-Traffic
Operations |
H |
| SOS-10 |
ICMS calculate
transit metrics
The ICMS shall
calculate the following corridor performance metrics for the transit
routes within the corridor at least once every 2 minutes:
- Speed
- Volume
- Excess capacity
- Travel time deviation from average
|
User Need 5, User Need 18 |
ICMS-Data Hub;
ICMS-ASG; ICMS-Traffic
Operations |
H |
| SOS-11 |
ICMS display
metrics to operators
The ICMS shall display
the current corridor performance metrics (2 minutes or less) for freeways,
arterials, and transit routes within the corridor to the ICMS operators.
|
User Need 5, User Need 18 |
ICMS-Data Hub;
ICMS-ASG; ICMS-Traffic
Operations |
H |
| SOS-12 |
ICMS present
transit trip planning to travelers
The ICMS shall provide
travelers accessing the traveler information system with information about
transit options and current travel times of transit vehicles. |
User Need 6 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-13 |
ICMS provide
transit advantages
The ICMS shall provide
signal timing priority to prevent transit vehicles from waiting longer
than 30 seconds when exiting park-and-ride facilities. |
User Need 7 |
ICMS-MTCC; ICMS-ASG |
H |
| SOS-14 |
ICMS provide
internet to transit riders
The ICMS shall provide
a mechanism for transit riders to access the Internet while on board buses
traveling along designated transit routes. |
User Need 8 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-15 |
ICMS inform
travelers of transit benefits
The ICMS shall provide
travelers with information about the benefits of transit ridership in the
form of transit access lanes or parking advantages. |
User Need 8 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-16 |
ICMS inform
travelers of conditions at ABC
garages
The ICMS shall provide
travelers with the most current information available about the conditions
and travel times in monitored segments of the corridor as travelers
approach the ABC garages. |
User Need 10 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-17 |
ICMS inform
travelers of parking garage availability
The ICMS shall provide
travelers with information about the current available parking capacity at
the ABC garages while travelers
are approaching the garages. |
User Need 10 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-18 |
ICMS inform
travelers of incidents and events en-route
The ICMS shall provide
travelers with information about current events impacting travel
downstream or on nearby routes without travelers needing to request the
information. |
User Need 10 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-19 |
ICMS exchange
information among agencies
The ICMS shall share
information about events, incidents, and conditions with other
transportation and emergency response agencies within 5 minutes of
receiving information. |
User Need 11 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-20 |
ICMS support
infrastructure reliability
The ICMS support
systems shall provide power to maintain operation of signal control
devices for at least 2 hours after a power outage. |
User Need 14 |
ICMS-Traffic
Operations; ICMS-ASG |
H |
| SOS-21 |
ICMS informs
travelers of transit capacity increases
The ICMS shall provide
travelers with notification of transit capacity increases (additional
routes or additional capacity on existing routes) within 10 minutes of
receiving information that additional capacity has been added. |
User Need 15 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
| SOS-22 |
ICMS manages
traffic flow
The ICMS shall provide
a mechanism for arterial signal operators to select and implement signal
timing plans within 5 minutes of notification of conditions or events. |
User Need 17 |
ICMS-ASG; ICMS-Traffic
Operations |
H |
| SOS-23 |
ICMS informs
arterial operators of conditions
The ICMS shall provide
arterial signals operators with current system data and information about
conditions along arterial and parallel freeways to support the selection
of signal timing plans. |
User Need 17 |
ICMS-ASG; ICMS-Traffic
Operations |
H |
| SOS-24 |
ICMS provides
visual surveillance to arterial operators
The ICMS shall provide
a mechanism for arterial signal operators to view current system images of
arterial intersections. |
User Need 17 |
ICMS-ASG; ICMS-Traffic
Operations |
H |
| SOS-25 |
ICMS monitor
device status
The ICMS shall provide
operators and administrators with reports of any devices and systems
malfunctioning within 5 minutes of the malfunction being detected by the
system. |
User Need 18 |
ICMS-MTCC; ICMS-Traffic
Operations |
H |
