CDOT Performance Data Business Plan - Cambridge Systematics

CDOT Performance Data Business Plan
Additional Notes: RSL is defined as the number of years remaining until
reconstruction is necessary. A pavement segment’s RSL is estimated based on
pavement age, traffic volumes, climate zone, cracking distress, rut depth, and
smoothness as measured by IRI.
IRI is a measurement of pavement smoothness, and reflects how the traveling
public experiences a roadway. The recommended thresholds for good/fair/poor
for IRI are based on thresholds being considered by AASHTO and FHWA as part
of a national performance monitoring program.
RSL is a holistic representation of pavement condition based upon age,
environment, distress deterioration rates, and the user's perspective as
represented by IRI. Combining RSL with IRI elevates the importance of the
user's perspective. However, CDOT may want to adjust the weight associated
with each component. The current proposal is to weight them both equally. If
the public surveys indicate willingness for less than perfect pavement, RSL
should be weighted higher than IRI.
ADLP is a tool maintained by the pavement group. Output from the ADLP is
stored in an access database and/or spreadsheet, and imported into the
pavement management system.
4. Roadside Condition
Existing Measure: Nine measures are tracked and combined to provide an
Overall Maintenance Level of Service grade at CDOT.
Recommendation: Recommended modification to the existing measure is to
combine the LOS grades for the Roadside Facilities and Roadside Appearance
Maintenance Programs into a new measure of roadside condition.
Current Value:
Value Based on Recommendation: B+
Owner: B.J. McElroy
Roadside Facilities B+ / Roadside Appearance B
Required Data Item Source Owner
Roadside Facilities LOS
Roadside Appearance LOS
Roadside Facilities expenditures from
previous year
Roadside Appearance expenditures
from previous year
BPS Module of SAP (source will be
PBF, when complete)
BPS Module of SAP (source will be
PBF, when complete)
BPS Module of SAP
BPS Module of SAP
Operations and Maintenance Division
Operations and Maintenance Division
Operations and Maintenance Division
Operations and Maintenance Division
3-12 Cambridge Systematics, Inc.