Minimum value toll

model-files/scripts/block/hwyParam.block

@@ -40,3 +40,6 @@ Means_Based_Tolling_Q1Factor  = xx.xx         ; a factor between 0 to 1 indicati
 Means_Based_Tolling_Q2Factor  = xx.xx         ; a factor between 0 to 1 indicating the toll discount by income group
 Means_Based_Cordon_Tolling_Q1Factor = xx.xx   ; a factor between 0 to 1 indicating the cordon toll discount by income group
 Means_Based_Cordon_Tolling_Q2Factor = xx.xx   ; a factor between 0 to 1 indicating the cordon toll discount by income group
+
+; set by RuntimeConfiguration.py -- Minimum value toll, in 2000 cents
+min_vtoll = xx.xx

model-files/scripts/preprocess/RuntimeConfiguration.py

@@ -399,6 +399,15 @@ def config_auto_opcost(params_filename, params_contents, for_logsums, replacemen
         filepath = os.path.join("CTRAMP","runtime","logsums.properties")
     replacements[filepath]["(\nAuto.Operating.Cost[ \t]*=[ \t]*)(\S*)"] = r"\g<1>%.2f" % auto_opc
 
+
+    # find the minimum value toll
+    MinimumValueToll = float(get_property(params_filename, params_contents, "min_vtoll"))
+
+    # put them into the CTRAMP\scripts\block\hwyParam.block
+    filepath = os.path.join("CTRAMP","scripts","block","hwyParam.block")
+    replacements[filepath]["(\nmin_vtoll[ \t]*=[ \t]*)(\S*)"] = r"\g<1>%.2f" % MinimumValueToll
+
+
     # put it into the UECs
     config_uec("%.2f" % auto_opc)
 

model-files/scripts/skims/HwySkims.job

@@ -358,6 +358,9 @@ loop period = 1, 5
 
       ; give each period thread more threads to work with   
       ;DistributeIntrastep processid = 'ctramp', processlist = 1-4, commpath = '%COMMPATH%', saveprn = f
+
+      ; block file containing highway parameters
+      read file=ctramp\scripts\block\hwyparam.block
 
       ; drive alone skim
       mati[1] = skims\DA_@token_period@.tpp
@@ -405,7 +408,14 @@ loop period = 1, 5
       mw[4]   = mi.1.TOLLTIMEDA
       mw[5]   = mi.1.TOLLDISTDA
       mw[6]   = mi.1.TOLLBTOLLDA
-      mw[7]   = mi.1.TOLLVTOLLDA
+      ; set minimum toll, except when vtoll is 0 as it indicates no toll path
+      jloop
+        if (mi.1.TOLLVTOLLDA[j]=0) 
+          mw[7][j] = 0
+        else 
+          mw[7][j] = max(mi.1.TOLLVTOLLDA[j], min_vtoll)
+        endif
+      endjloop
 
       ; shared ride 2
       mw[8]   = mi.2.TIMES2
@@ -414,16 +424,30 @@ loop period = 1, 5
       mw[11]  = mi.2.TOLLTIMES2
       mw[12]  = mi.2.TOLLDISTS2
       mw[13]  = mi.2.TOLLBTOLLS2
-      mw[14]  = mi.2.TOLLVTOLLS2
-
+      ; set minimum toll, except when vtoll is 0 as it indicates no toll path
+      jloop
+        if (mi.2.TOLLVTOLLS2[j]=0) 
+          mw[14][j] = 0
+        else 
+          mw[14][j] = max(mi.2.TOLLVTOLLS2[j], min_vtoll)
+        endif
+      endjloop
+
       ; shared ride 3+
       mw[15]  = mi.3.TIMES3
       mw[16]  = mi.3.DISTS3
       mw[17]  = mi.3.BTOLLS3
       mw[18]  = mi.3.TOLLTIMES3
       mw[19]  = mi.3.TOLLDISTS3
       mw[20]  = mi.3.TOLLBTOLLS3
-      mw[21]  = mi.3.TOLLVTOLLS3
+      ; set minimum toll, except when vtoll is 0 as it indicates no toll path
+      jloop
+        if (mi.3.TOLLVTOLLS3[j]=0) 
+          mw[21][j] = 0
+        else 
+          mw[21][j] = max(mi.3.TOLLVTOLLS3[j], min_vtoll)
+        endif
+      endjloop
 
       ; very small trucks
       mw[22]  = mi.4.TIMEVSM
@@ -432,7 +456,14 @@ loop period = 1, 5
       mw[25]  = mi.4.TOLLTIMEVSM
       mw[26]  = mi.4.TOLLDISTVSM
       mw[27]  = mi.4.TOLLBTOLLVSM
-      mw[28]  = mi.4.TOLLVTOLLVSM
+      ; set minimum toll, except when vtoll is 0 as it indicates no toll path
+      jloop
+        if (mi.4.TOLLVTOLLVSM[j]=0) 
+          mw[28][j] = 0
+        else 
+          mw[28][j] = max(mi.4.TOLLVTOLLVSM[j], min_vtoll)
+        endif
+      endjloop
 
       ; small trucks
       mw[29]  = mi.5.TIMESML
@@ -441,7 +472,14 @@ loop period = 1, 5
       mw[32]  = mi.5.TOLLTIMESML
       mw[33]  = mi.5.TOLLDISTSML
       mw[34]  = mi.5.TOLLBTOLLSML
-      mw[35]  = mi.5.TOLLVTOLLSML
+      ; set minimum toll, except when vtoll is 0 as it indicates no toll path
+      jloop 
+        if (mi.5.TOLLVTOLLSML[j]=0) 
+          mw[35][j] = 0
+        else 
+          mw[35][j] = max(mi.5.TOLLVTOLLSML[j], min_vtoll)
+        endif
+      endjloop
 
       ; medium trucks
       mw[36]  = mi.6.TIMEMED
@@ -450,7 +488,14 @@ loop period = 1, 5
       mw[39]  = mi.6.TOLLTIMEMED
       mw[40]  = mi.6.TOLLDISTMED
       mw[41]  = mi.6.TOLLBTOLLMED
-      mw[42]  = mi.6.TOLLVTOLLMED
+      ; set minimum toll, except when vtoll is 0 as it indicates no toll path
+      jloop
+        if (mi.6.TOLLVTOLLMED[j]=0) 
+          mw[42][j] = 0
+        else 
+          mw[42][j] = max(mi.6.TOLLVTOLLMED[j], min_vtoll)
+        endif
+      endjloop
 
       ; large trucks
       mw[43]  = mi.7.TIMELRG
@@ -459,7 +504,14 @@ loop period = 1, 5
       mw[46]  = mi.7.TOLLTIMELRG
       mw[47]  = mi.7.TOLLDISTLRG
       mw[48]  = mi.7.TOLLBTOLLLRG
-      mw[49]  = mi.7.TOLLVTOLLLRG
+      ; set minimum toll, except when vtoll is 0 as it indicates no toll path
+      jloop
+        if (mi.7.TOLLVTOLLLRG[j]=0) 
+          mw[49][j] = 0
+        else 
+          mw[49][j] = max(mi.7.TOLLVTOLLLRG[j], min_vtoll)
+        endif
+      endjloop
 
    endrun
 

utilities/NextGenFwys/config_NGF_Round2/params_NoProject.properties

@@ -196,3 +196,17 @@ Free_Parking_Eligibility_OnOff = -9999.0
 # Note HSR intraregional travel represented with network project
 # Set to 0 to leave trips ON, set to 1 to DISABLE
 HSR_Interregional_Disable = 0
+
+
+# Minimum toll
+# Existing express lanes in real life charge users a minimum toll, because operators need to recover the costs of operations
+# From what we know, the minimum tolls in the region are as follows:
+# Express lanes operated by MTC (in current prices):  $0.50
+# I-580 opened in Feb 2016 operated by ACTC (in current prices): $0.30 (2016, in our 2015 network); $0.50 (since 2017)
+# Legacy I-680 operated by ACTC (in current prices): <$0.50 (2015); $0.50 (since 2017)
+# Express lanes operated by VTA (in current prices):  $0.30 (always)
+# Caveat: The current model implementation accept only one minimum toll for all express lanes in the region
+
+# 50 cents in 2023$ =  50 cents/1.87 = 26.74 cents in 2000$
+# based on inflation assumptions stated here: https://github.com/BayAreaMetro/modeling-website/wiki/InflationAssumptions
+min_vtoll = 26.74

utilities/RTP/config_RTP2025/params_2023_AOC15.16.properties → utilities/RTP/config_RTP2025/params_2023_MinVtoll.properties

@@ -185,3 +185,20 @@ Free_Parking_Eligibility_OnOff = 0.0
 # Note HSR intraregional travel represented with network project
 # Set to 0 to leave trips ON, set to 1 to DISABLE
 HSR_Interregional_Disable = 0
+
+
+# Minimum toll
+# Existing express lanes in real life charge users a minimum toll, because operators need to recover the costs of operations
+# Asana task: https://app.asana.com/0/0/1206460470095669/f
+# From information we gathered, the minimum tolls in the region are as follows:
+# Express lanes operated by MTC (in current prices):  $0.50
+# I-580 opened in Feb 2016 operated by ACTC (in current prices): $0.30 (2016, in our 2015 network); $0.50 (since 2017)
+# Legacy I-680 operated by ACTC (in current prices): <$0.50 (2015); $0.50 (since 2017)
+# Express lanes operated by VTA (in current prices):  $0.30 (always)
+
+# In summary, in 2023 the minimum toll is 50 cents for MTC and ACTC vs 30 cents for VTA in the real world
+# However, the current model implementation accept only one minimum toll for all express lanes in the region
+# Since more operators had 50 cents as the minimum, this is the modeling assumption for 2023
+# 50 cents in 2023$ =  50 cents/1.87 = 26.74 cents in 2000$
+# based on inflation assumptions stated here: https://github.com/BayAreaMetro/modeling-website/wiki/InflationAssumptions
+min_vtoll = 26.74

utilities/RTP/config_RTP2025/params_2035_IPA.properties

@@ -196,3 +196,19 @@ Free_Parking_Eligibility_OnOff = -9999.0
 # Note HSR intraregional travel represented with network project
 # Set to 0 to leave trips ON, set to 1 to DISABLE
 HSR_Interregional_Disable = 0
+
+# Minimum toll
+# Existing express lanes in real life charge users a minimum toll, because operators need to recover the costs of operations
+# From what we know, the minimum tolls in the region are as follows:
+# Express lanes operated by MTC (in current prices):  $0.50
+# I-580 opened in Feb 2016 operated by ACTC (in current prices): $0.30 (2016, in our 2015 network); $0.50 (since 2017)
+# Legacy I-680 operated by ACTC (in current prices): <$0.50 (2015); $0.50 (since 2017)
+# Express lanes operated by VTA (in current prices):  $0.30 (always)
+# Caveat: The current model implementation accept only one minimum toll for all express lanes in the region
+
+# 50 cents in 2023$ =  50 cents/1.87 = 26.74 cents in 2000$
+# based on inflation assumptions stated here: https://github.com/BayAreaMetro/modeling-website/wiki/InflationAssumptions
+min_vtoll = 26.74
+
+
+