AASHTO SCOP Corridor Profile Studies Linking Planning to Programming Dave Perkins, Kimley-Horn P2P Link
Corridor Performance-Based Needs Assessment Corridor Performance-Based Needs Assessment Pavement Bridge M obility Safety Freight Primary Measure Statewide Performance Prioritization Corridor and Needs of Needs and Performance Area Indices To Define Corridor Health and Identify Need Performance (by others) Solution Sets Segment Maps Secondary Measures Additional Performance Measures To Diagnose Needs Corridor Project Life Performance Package Solution Cycle and Segment Maps Sets Risk Analysis Drill Down Analysis Additional data sets as required Itemized Formulate P2P Link and to evaluate nature of need Performance- Potential Causes Recommended Based Needs and Solutions Program
Performance Areas (related to MAP-21 and ADOT Annual Performance Report) Pavement Bridge Mobility Safety Freight
Performance Area Primary Measure Performance Area Index Indicator Indicator Secondary Measures Measure Measure Measure Measure Indicator Indicator Indicator Indicator Indicator Indicator Indicator
Corridor and System Health • Primary Measure used to evaluate relative health and indexed to make comparative analysis to “healthy” conditions • Secondary Measures provide diagnostic information to help identify causes and potential solutions
Pavement Performance Area Primary Measure Pavement Index Pavement Pavement Serviceability Distress Secondary Measures Directional Pavement Pavement Failure Pavement Hot Spots S erviceability % of pavement below PSR or PDI at critical Directional PS R thresholds for IRI or threshold Cracking
Pavement Performance Area • Primary M easure: uses combination of PSR (International Roughness Index) and PDI (Cracking) Pavement Directional PSR % Area • Data Source: current ADOT pavement Index Segment EB WB Failure 40-1 4.10 4.03 4.12 4.5% database 40-2 4.38 4.29 4.21 1.6% • 40-3 4.11 4.06 4.04 0.0% Calculation of Pavement Index: 40-4 3.20 3.10 3.48 47.5% combination of both directions of travel 40-5 3.64 4.15 3.20 33.3% 40-6 3.22 3.42 3.22 53.8% and weighted by # of lanes 40-7 3.56 3.50 3.57 0.0% • Pavement Index Score: Good/ Fair/ Poor 40-8 4.09 4.02 3.98 8.3% 40-9 4.27 3.93 4.24 2.2% based on ADOT performance thresholds 40-10 3.64 3.50 3.55 47.9% 40-11 3.26 3.54 3.63 31.3% for PSR and PDI 40-12 3.60 3.76 3.94 9.4% • Secondary M easures: breaks PS R into 40-13 2.85 3.73 3.52 41.7% 40-14 3.74 3.87 3.75 26.2% each direction and help identify “hot Wtd Avg 3.79 3.79 3.82 20.1% spots” Good > 3.75 > 3.75 < 5% Fair 3.2 - 3.75 3.2 - 3.75 5% - 20% Poor < 3.2 < 3.2 > 20%
Bridge Performance Area Primary Measure Bridge Index Substructure Deck Rating Rating Superstructure Structural Rating Evaluation Rating Secondary Measures Functionally Bridge Hot Spots Bridge Sufficiency Obsolete Bridges % Deck on Structurally Sufficiency Rating Functionally Deficient Bridges Obsolete Bridges (map locations)
Bridge Performance Area • Primary M easure: uses 4 measures to % Bridges Bridge Bridge Functionally assess health of each bridge Index Segment Sufficiency Obsolete 40-1 3.66 81.10 5.7% • Data Source: current ADOT bridge database 40-2 5.62 88.70 6.6% • Calculation of Bridge Index: calculated for 40-3 5.84 94.52 25.2% 40-4 5.59 93.41 24.4% each segment; weighted by deck area 40-5 5.13 94.85 21.0% • Bridge Index Score: Good/ Fair/ Poor based 40-6 5.36 87.52 3.4% 40-7 6.72 68.64 0.0% on established ADOT performance 40-8 5.71 90.38 49.0% thresholds 40-9 5.21 87.19 0.0% • Secondary M easures: will provide 40-10 5.37 91.34 40.1% 40-11 5.81 95.07 23.5% supplemental information and identify “hot 40-12 5.27 80.51 79.7% spots” 40-13 5.50 97.11 0.0% 40-14 5.11 90.05 0.0% Wtd Avg 5.43 88.19 20.2% Good > 6.5 > 80 < 15% 15% - Fair 5.0 - 6.5 50 - 80 45% Poor < 5.0 < 50 > 45%
Mobility Performance Area Primary Measure Mobility Index Current V/ C Future V/ C Secondary Measures Peak Congestion Future Traffic Travel Time Reliability Multimodal Opportunities Travel Time Index (car) Design Hour Volume Future V/ C Transit Model Travel Time Index (truck) Current V/ C % ADT Growth Non-Recurring Congestion Non-S OV Opportunities Vertical Grades
Mobility Performance Area Closure Extent % Non- • (instances/ Directional Primary M easure: Considers both current Single Existing Peak milepost/year/ TTI Directional PTI Occupancy Hour V/C mile) (all vehicles) (all vehicles) and future traffic volumes compared to Vehicle Future (SOV) capacity Mobility Daily Opportuniti Index Segment V/C EB WB EB WB EB WB EB WB es • Data Sources: HPMS (current) AZTDM2 40-1 0.43 0.59 0.26 0.25 0.18 0.09 1.22 1.06 1.34 1.12 9.6% 40-2 0.37 0.51 0.16 0.14 0.37 0.09 1.12 1.08 1.19 1.14 14.2% (future) 40-3 0.55 0.72 0.37 0.38 0.43 0.22 1.29 1.18 1.48 1.33 19.8% • Calculation of M obility Index: Average of 40-4 0.56 0.74 0.28 0.14 0.63 0.27 1.17 1.15 1.26 1.27 18.8% 40-5 0.44 0.60 0.24 0.13 1.90 0.90 1.17 1.15 1.26 1.27 15.1% Current and Future Volume to Capacity 40-6 0.40 0.55 0.21 0.19 1.81 0.91 1.23 1.08 1.38 1.14 6.8% Ratio 40-7 0.37 0.51 0.17 0.16 1.74 0.82 1.11 1.08 1.17 1.14 6.8% 40-8 0.44 0.61 0.21 0.18 1.70 0.85 1.14 1.14 1.21 1.21 15.0% • Resulting M obility Index Score: 40-9 0.41 0.57 0.19 0.20 1.51 0.70 1.10 1.12 1.16 1.19 12.9% Good/ Fair/ Poor based on Highway 40-10 0.52 0.72 0.22 0.17 1.93 1.25 1.25 1.11 1.41 1.18 13.1% Capacity Manual, using Urban/ Rural 40-11 0.53 0.73 0.24 0.22 1.85 1.13 1.16 1.11 1.25 1.18 8.9% values for Level of Service • 40-12 0.45 0.58 0.21 0.20 1.68 1.08 1.11 1.11 1.17 1.17 9.0% Secondary M easures: • Peak Congestion 40-13 0.52 0.66 0.29 0.28 1.77 1.13 1.10 1.12 1.15 1.19 14.4% • Future Traffic Volume 40-14 0.37 0.48 0.24 0.22 1.60 1.13 1.07 1.17 1.14 1.26 16.7% • Travel Time Reliability (cars & trucks) Wtd 0.45 0.61 0.22 0.19 1.24 0.66 1.16 1.11 1.26 1.19 12.9% • Multimodal Opportunities Avg Good < 0.71 (0.56) < 0.26 < 1.15 < 1.3 > 17% 11% - Fair 0.71 (0.56) - 0.89 (0.76) 0.26 - 1.53 1.15 - 1.33 1.3 - 1.5 17% Poor > 0.89 (0.76) > 1.53 > 1.33 > 1.5 < 11%
• Primary M easure: Safety Performance Area % of Fatal + • Fatal crashes – economic cost of Incapacitating Injury Crashes Involving % of Fatal + $5.8M/ crash SHSP Top 5 Incapacitating Emphasis Areas Injury Crashes • S erious injury crashes – economic cost of Safety Index Segment Behaviors Involving Trucks 40-1 0.82 70.0% 10.0% $400K/ crash 40-2 1.07 62.0% 24.0% • Data Source: Most current 5 full calendar years of 40-3 0.98 37.0% 11.0% 40-4 0.67 20.0% 8.0% ADOT statewide crash database 40-5 1.65 25.0% 25.0% • 40-6 0.69 36.0% 18.0% Calculation of Safety Index: Calculated frequency 40-7 0.89 20.0% 10.0% and rate indices for each segment and for similar 40-8 2.00 23.0% 15.0% 40-9 1.58 35.0% 12.0% statewide segments; Combined equally weighted 40-10 0.50 44.0% 16.0% 40-11 1.13 75.0% 13.0% frequency and rate; Normalized against statewide 40-12 2.00 33.0% 0.0% average for segment type 40-13 1.93 25.0% 25.0% 40-14 2.00 0.0% 25.0% • Resulting Safety Index Score: Above Average/ Wtd 1.19 39.2% 14.6% Average/ Below Average based on comparison to Avg statewide average for segment type Good > 1.2 < 52 (45)% < 6 (12)% 52 (45)% - 61 6 (12)% - 14 • Secondary M easures: May help identify “hot Fair 0.8 - 1.2 (53)% (16)% Poor < 0.8 > 61 (53)% > 14 (16) % spot ” issues or how to improve safety in emphasis areas
Recommend
More recommend
