Evaluating Alternative Operations Strategies to Improve Travel Time ...
Evaluating Alternative Operations Strategies to Improve Travel Time ...
Evaluating Alternative Operations Strategies to Improve Travel Time ...
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SHRP 2 L11: Final Report<br />
Table 6.7 Level 1 <strong>Strategies</strong> (Delay Reduction of up <strong>to</strong> 50%)<br />
Category Strategy Treatments<br />
2.Information<br />
Collection and<br />
Dissemination<br />
4. Incident and<br />
Special Event<br />
Management<br />
5.<br />
Infrastructure<br />
<strong>Improve</strong>ments<br />
and Demand<br />
Optimization<br />
2.3.Pre-trip<br />
Information<br />
4.1.Preevent<br />
4.2.Postevent<br />
5.3.Signal<br />
Timing/ ITS<br />
5.6.<br />
Congestion<br />
Pricing<br />
National<br />
Traffic and<br />
Road Closure<br />
Information<br />
Service<br />
Patrols<br />
On-Scene<br />
Incident<br />
Management<br />
(Incident<br />
Responder<br />
Relationship,<br />
High visibility<br />
garments,<br />
Clear Buffer<br />
zones,<br />
Incident<br />
Screens)<br />
Work Zone<br />
Management<br />
Transportation<br />
Management<br />
Center (TMC)<br />
Traffic<br />
Adaptive<br />
Signal Control/<br />
Advanced<br />
Signal<br />
Systems<br />
Electronic Toll<br />
Collection<br />
(ETC)<br />
Application<br />
<strong>to</strong> Sources<br />
of<br />
Congestion<br />
Weather,<br />
Work Zones<br />
Traffic<br />
Incidents<br />
Traffic<br />
Incidents<br />
Work Zones<br />
Traffic<br />
Control<br />
Devices,<br />
Special<br />
Events,<br />
Weather,<br />
Work Zones,<br />
Traffic<br />
Incidents<br />
Traffic<br />
Control<br />
Devices<br />
Physical<br />
Bottlenecks<br />
Key Quantitative<br />
Benefits<br />
Reduces delays<br />
(early and late<br />
arrivals) by 50%<br />
Can reduce<br />
incident response<br />
by 19% <strong>to</strong> 77%<br />
and incident<br />
clearance time by 8<br />
min.<br />
Traffic incident<br />
management<br />
programs have<br />
reported reductions<br />
in incident duration<br />
from 15 <strong>to</strong> 65<br />
percent<br />
Reduces work zone<br />
related delays by<br />
50% <strong>to</strong> 55%<br />
Reduces delay by<br />
10% <strong>to</strong> 50%<br />
Adaptive signal<br />
control systems<br />
have been shown<br />
<strong>to</strong> reduce peak<br />
period travel times<br />
6-53%.<br />
Electronic Toll<br />
Collection (ETC)<br />
reduces delay by<br />
50% for manual<br />
cash cus<strong>to</strong>mers<br />
and by 55% for<br />
au<strong>to</strong>matic coin<br />
machine<br />
cus<strong>to</strong>mers, and<br />
increases speed by<br />
57% in the express<br />
lanes.<br />
Overall Cost<br />
Range*<br />
Effective<br />
ness-<br />
Cost<br />
Rank<br />
Low-Medium 1-B<br />
High 1-E<br />
Low 1-A<br />
Variable<br />
(depends if<br />
infrastructure is<br />
added or not)<br />
OPERATIONS STRATEGIES AND TREATMENTS TO IMPROVE TRAVEL-TIME RELIABILITY Page 79<br />
1-D<br />
High 1-E<br />
Medium-High 1-C<br />
High 1-E<br />
Notes: Overall Cost Range* : Low - 200K but < 1 million<br />
High - >1 million<br />
* Overall Cost Range applies <strong>to</strong> the application of a treatment in roadway segment or corridor. For example, several DMS can be<br />
installed along an important route.
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