CE 561 Lecture Notes. Transportation Performance. Set 7. Why Measure Performance? Motivation

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1 CE 561 Lecture Notes Set 7 Transportaton Performance Why Measure Performance? Accountablty Qualty Assessment Customer Satsfacton Trackng of Achevement Motvaton GASB State and Local Governments Indcators Inputs Outputs Outcomes and Servce Qualty Effcency

2 Performance Measures Mult-Modal of Mode Specfc Freght or Passenger Transportaton Systemwde, Corrdor, or Faclty Plannng or Programmng Admnstratve Unt Perspectve of User, Agency, or Operator Transportaton Performance Measures System Condton Operatonal Effcency Accessblty Moblty Economc Development Qualty of Lfe Safety Envronmental Resource Conservaton Urban Transt Performance Defntons Effcency Servce Output/Resource Input Performance Effectveness Achevng System Objectves

3 Effectveness Servce Suppled Accessblty Qualty of Servce Servce to Specal Groups Utlzaton of Servce/Passenger Utlzaton Revenue Generaton Capablty Revenue per Produced Output Revenue per Consumed Output Effcency Resource Utlzaton Labor Utlzaton Vehcle Utlzaton Fnancal Performance Cost per Produced Output Cost per Consumed Output Mantenance Performance Safety Performance Types of Performance Indcators Effcency Operatng Rato Operatng Cost per Vehcle-Mle Operatng Cost per Vehcle-Hour Operatng Cost per Passenger-Mle Effectveness Rdershp per Capta Percent Populaton Served Percent On-Tme Arrvals Percent Elderly and Handcapped Served Passengers per Route-Mle Defct per Passenger

4 Stratfcaton To take nto account the factors beyond the control of the operators. System Speed Wage Rate Type of Servce Populaton See Handout 1 Transt Performance Interactons Servce Varables Speed No. of Stops Frequency Transfer Output Varables Rdershp Revenue Vehcle-Mles Vehcle-Hours Resource Varables Number of Buses Number of Drvers Operatng Costs User Costs Polcy Varables Performance Measures

5 See Handouts 2-4 RT TT Runnng Tme + Dwell Tme + Startng/Stoppng Tme Average Operatng Speed Prob. of a Stop 2Q L L + 2QE / X + δ YL 1 e XYL S S * Dwell tme Round trp tme Runnng tme (loadng/unloadng tme) Startng/stoppng tme L Round trp route length Y No. of stops/mle Q Average hourly demand M Avg. trp length/pass n mles X frequency; buses per hour E avg. dwell tme per passenger; converted to hrs unt stoppng/startng tme n hrs δ Average # of Passengers per stop per mle per bus Q XYL Average # of boardngs and alghtngs 2Q XYL Probablty that K stops wll be made Probablty of K boardngs and alghtngs e 2Q / XYL 2Q XYL K! K

6 Probablty that no stop wll be made XYL e 2Q / Probablty that a stop wll be made 1 e 2Q / XYL Servce Varables 60M IVTT S WKT 30 WY n mnutes n mnutes Maxmum walkng dstance 1/2 dstance between stops Average walkng dstance 1/2 x 1/2Y 1/4Y mles Consderng both ends of the trp, Average walkng dstance 1/2Y 60 WKT 2YW 30 YW W walkng speed 30 / x for x 2 WTT n mnutes / x for x < 2 Q1 Q0 1 + α ( IVTT) ( WKT + WTT ) + β ( + ) + γ (Fare) IVTT WKT WTT Fare 0 Rdershp 0 0 0

7 ( Re venue / hour) ( Rdershp / hour) * Fare REVPH Q * Fare ( Veh Mles / hour) ( Freq) * ( Round Trp Length) VMPH X * L ( Veh Mles /hour) ( Freq) * (( Round Trp Length) Layover) L VHPH X * S + + ( 1 LOF) ( Passenger Mles / hour) ( Rdershp /hour) * ( Avg trp length) PMPH Q * M ( Number of Buses) ( Freq) * ( Round Trp Tme) L NBUS X * rounded S Veh hrs / day * R Number of Drvers N Pay hours R Platform hours N # of hours per day ( regular) VHPD * R NDRVR N

8 ( Operatng cos t /hour) a( VHPH/ hr) + b( VMPH/ hr) ( User Cost per Passenger ) V( IVTT) + nv( WKT + WTT ) Dollar value of IVTT Dollar value of OVTT ( UCPH ) ( UCPP) * Q Englsh Ave., Route 10, Indanapols L 19.1 mles Y 9.11 per mle Number of pds (n) 4 (weekday peak & off-peak, Saturday peak & off-peak Hours of Servce (Weekdays & Saturdays) Peak 7am-9am 3:30pm-6pm Off-Peak 6am-7am 9am-3:30pm 6pm-7pm Headways (60/x) n mn; Rdershp (Q) n Pass/hr; Annual Hrs. of Operaton; Weekdays Peak 20 Off-Peak 45 Peak Off-Peak Peak Off-Peak Saturday Weekdays 52 Saturdays Runnng Speed (S*) 27.5 mph Average Trp Length (M) 0.56 mles Fare 50 cents, all perods

9 Average loadng/unloadng tme (E) 4.66 seconds/passenger Average stoppng/startng tme ( δ) seconds/stop Walkng Speed (W) 3 mph Value of IVTT (v) $2.0/hr. Value of OVTT (nv) $4.0/hr. Bus Sze 47 seats Unt cost of Bus Operaton a $10.5 per vehcle-hr b $ per veh-mle Average rato of pay-hours to platform-hours (R) 1.20 Average pay-hours per drver 9.25 per day Base-Case Opton 1 Opton 2 Opton 3 Wkday (pk/off-pk) 20/45 17/36 24/36 24/36 Headways (mnutes) Saturday (pk/off-pk) 40/45 40/45 30/30 30/30 # of stops wkday peak Fare (cents) /40 wkday off-pk & Saturday See Handouts 5-7