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U.S. Department of Transportation
Research and Innovative Technology
Administration
Insight: Regional Architecture
stimulates deployment
| These data show
and compare the effect of an increase in budget or implementation of a
regional architecture on the adoption of either EVP or VDC ITS technologies. |
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| The bottom section
of each of the charts show the baseline predicted probability of adoption for
the median agency in the data sample (which is from the Deployment Tracking
survey). In the case of EVP the baseline is 15% and for VDC it is 90%. The probability of adoption for the median
agency is considerably different in these markets. |
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| The top section of
the charts show the increase in adoption from increasing funding from the
median agency level to the 99th percentile (in term of
funding). For architecture it is the
effect of going from no architecture to having an architecture. |
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| A key observation
here is that increasing either funding or implementing a regional
architecture has similar effects on the magnitude of the subsequent increase
in the probability of adoption for each technology. |
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| For the purposes
of this modeling exercise, the increase in budget for the median agency in
EVP-FR is similar to giving Miami’s budget to Syracuse. Likewise, for VDC it
is like taking the budget for Dallas and giving it to Birmingham, AL. (Note
these are county level budget data, but they do provide and indication of the
magnitude of funding change required to shift the adoption probability by the
percentage noted above – the way to interpret these data is that the increase
in probability is additive to the baseline). |
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| If the cost of
implementing a regional architecture for the median agency is considerably
less than the cost of funding noted
above, then a regional architecture will provide close to same increase in
adoption with a much lower outlay. |
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| Another
observation is the magnitude of change in the adoption probability given the
baseline predicted probability of the median agency. The higher this probability, the less
effect an intervention, be it funding or an architecture, will have. |
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| If the cost of
additional funds to increase adoption is considerably larger than the cost of
implementing or upgrading a regional archaitecture requirement, then |
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