ALDOT Statewide TSMO Program Plan ALDOT Statewide TSMO Program Plan 20190522REV | Page 35

Field Deployment Density Guidelines
Field deployment density guidelines have been developed to provide direction and guidance for ALDOT
at a statewide level. These field deployment density guidelines are primarily focused on ITS and
communications which is only one set of strategies available to address needs. It is critical to consider a
range of potential strategies to address needs. For example, if a large employment center experiences
reoccurring congestion, one potential solution may be to consider managing the demand and work with
the employers to stager shift changes; this strategy is significantly more cost effective rather than
expanding capacity through roadway construction.
The TSMO Project Development Guidelines are intended to provide context and direction at a high-level
to the area or corridor of consideration; it is expected that all locations and projects may not fall within
these parameters. Likewise, it is up to the TSMO project developer to assess each of the criteria and
determine the appropriate low-, medium-, or high-deployment need. For example, safety may be found
to be a high need where congestion, facility type, and weather may be considered low. In this case, it
would be likely that the TSMO project developer would consider high-density applications due to their
understanding and professional judgement of the high-safety need.
Deployment of CCTV, Communication, DMS, Automatic Safety Warning Systems, and/or detection should
follow deployment density guidelines as outlined below (Figure 10) and as aligned with the criteria
presented in the Statewide TSMO Project Development Guidelines. DMS or Automatic Safety Warning
Systems, for example, would be spaced at strategic decision-making points or site-specific locations with
identified need. Camera deployments may have low deployment density for strategic locations, while full-
coverage may be required for high-density applications. Similarly, Communication infrastructure may
have low density in areas that simply require connectivity, whereas fiber would be preferred for high-
density deployment applications.
Figure 10: Deployment Density Guidelines
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