Chapter 13 Quality Control CASE STUDY: EXIT 53 WMA FAST LANE TOLL SYSTEM, REVISITED Recall Crow Chapter 5 that Western Motorway Authority (WMA) operates a work of soll roads a bonecting three and areas. Kach of BIS to certo plazas Oilers a chole of payal H OW metode to approaching drivera, including WMA MST, a subscription service that allows drive to pwy widely as they throw a special roll We without thappuc Bait 33 toll plaza is a type cal WMA facility, equipped with Ave toll lanes, of which is dedicated to WMA HAST - scribers only Bach day, the dedicate WMA PAST lane ulomatically dehits the FAST Rounts of housands of passing vehicles, although a tically weiche will pass without transi bila informace o due FAST . Thus C elinda PAST Ime and highspeed Send the case of all the toll plaza. The WMA PAST S c ally certes these and was a list to be Forsendi r of the vehicle, his to pay both the exit 53 tall and a penalty for la w obe WMA TASTISSE A WMA FAST lane toll wlos y caused by a nonsubscripcion vehicle Lorealy choosing the FAST lane when to plaza, although someone is caused by inadequate roads in the FAST Count of a cription vehicle Abother a leur lors non cause lundrianing onboard FAST S er in a passing subscription vesiak, failing to Identity tell to the WMA WAST lane wireless system. All of the Senate ale natural outcoibe in a systin und by thousands of vehicles a day. apprapriately addressed by the automatic paper bulling of the relatertower However One other potential cause of a MST lane violation that the UST systein the func Luned, falling to record the signals from a clyfmetingenbaard transceiver. This causes Care o debit any account which tomatically trees the lane violation sys- Thiscerai is the moal lublesome to WMA manapament, in that the automatic bile or TASLlane vol u mes e vehicle was stat, net e PAST lanean conducted in late May, 20 the following 30 days of past data from edits represents the beliavior od a system that is in complete control: Recent 30 Days of Data for Exit 53 WMA FAST Lane Activity PASTOOR WEFASTMISEL Tols FAST La b in als FAST LANH Successfully Violaiton Surrnusfully Motion OtaDay Collected D a y collected issues 1-lan Monday 25 16 Jun Tuesday 2-lun Tuesday 10.325 26 17-Jun Wednesday -Jun Wednesday 8.978 18 Thursday 9,300 4-Jun Thursday 9916 Hideg 5 Jun Friday 2021 Sunday 2,053 22 None 265 23 Jun Tuesday 3.412 25 24 3 Videos - Wednesday 9213 23 2.3 Tursday 11- Thursday 8.271 22 26 Ridas 12-Jun Frey 20 - Saturday 13-Jun Saturday 14 JUB Sunday 29 Jun Monday 15. Mandy 24 On Tuesday B.045 GORY 11 8,075 A TAST Lage system shold not malluation properly maintained, although a mall possibles that some out of its been team cycles. This Lista ponability as free of these dienos meto plazamana er a FAST Lantation and over a thousadbu Les og vehicle be ope n ed the pooble adored the machiningane Sce n s at the ting pointed out WAS Cred for the loal to ma b enter ASTD violations each day, ay Schange in balaca ove visible. Other e meeting resebered perus pe loc ul cats, particularly c-ch , to pict the daily nmber of violations insae by PAST lane, and how these pilot projects filed. "We've been over his before," said or of the managers. "The usual quality control c ant stuttu 't wort for PST lanes. Every time we dwup & chart from the case of a flawlessly func Loning lang, Ilust indicates Ural lane is out of control. We're stuck before we even statt using the chart. The manager at exit volunteered in I T lane as the site for yet another pilotpro ect to develop a relevant tool to monitor FAST lane violations, one that would rectly senal any changes to be acted on quickly by closing the lane Exit 53's FAST lane e n was uporaded less than a year ago, and preventative maintenance was Questions 1. Use this data to create a chart for daily TAST lane violations issued, assuming 2 -3.0. This is the method that WMA attempted to actier. Mark the past dala on the chant. Does your chat indicate that the FAST lane system was in controlar these past 30 day? 2. One employee at exit members the previous pilot project and says "That wasn't ever going to work to can't just watch the best valtions, because a var les with ember of seach day. This oployee is plenice to the choice of a cartes apchat, but WMA ad that a p-chart could be and because there is a found in Popara adaptation of thepcha methodology and each te propo s ta the TASTset are issued i n each day. Does the chart indete cu stem is in control 3. Na ceste a tarting system that we WMA's Mosting problem. The set to this lies in the employee's previous statement and in an additional remark about the carlier unsuccessful pilot project "Why did they think as we'd be able to use the same chart all week BIBLIOGRAPHY Waclestone, J. ed. 2010. AMICS Dictionary, 13th ed. Chicago: Aries. The Associatia fur Operations ManaRCELL Evans, J., and W. Lindsay, 2002.7 tonment and cool of wellry, 5th ed. Cincinnati, OH: South-W / m Luni Hayle, D. 2009. ISO 5000 Quatty Systems Hundbok och ed. Oxford, UK: Sleegter. MoClave, J. E. P. G. Benson, and Snach. 2009. Scarico Business and Economies U Saddle R ENU: Prentice Hall. Tag, N. 2005. The Query Toolbox, and ed. Stilwaukee, WE: ASQ Quality Press Chapter 13 Quality Control CASE STUDY: EXIT 53 WMA FAST LANE TOLL SYSTEM, REVISITED Recall Crow Chapter 5 that Western Motorway Authority (WMA) operates a work of soll roads a bonecting three and areas. Kach of BIS to certo plazas Oilers a chole of payal H OW metode to approaching drivera, including WMA MST, a subscription service that allows drive to pwy widely as they throw a special roll We without thappuc Bait 33 toll plaza is a type cal WMA facility, equipped with Ave toll lanes, of which is dedicated to WMA HAST - scribers only Bach day, the dedicate WMA PAST lane ulomatically dehits the FAST Rounts of housands of passing vehicles, although a tically weiche will pass without transi bila informace o due FAST . Thus C elinda PAST Ime and highspeed Send the case of all the toll plaza. The WMA PAST S c ally certes these and was a list to be Forsendi r of the vehicle, his to pay both the exit 53 tall and a penalty for la w obe WMA TASTISSE A WMA FAST lane toll wlos y caused by a nonsubscripcion vehicle Lorealy choosing the FAST lane when to plaza, although someone is caused by inadequate roads in the FAST Count of a cription vehicle Abother a leur lors non cause lundrianing onboard FAST S er in a passing subscription vesiak, failing to Identity tell to the WMA WAST lane wireless system. All of the Senate ale natural outcoibe in a systin und by thousands of vehicles a day. apprapriately addressed by the automatic paper bulling of the relatertower However One other potential cause of a MST lane violation that the UST systein the func Luned, falling to record the signals from a clyfmetingenbaard transceiver. This causes Care o debit any account which tomatically trees the lane violation sys- Thiscerai is the moal lublesome to WMA manapament, in that the automatic bile or TASLlane vol u mes e vehicle was stat, net e PAST lanean conducted in late May, 20 the following 30 days of past data from edits represents the beliavior od a system that is in complete control: Recent 30 Days of Data for Exit 53 WMA FAST Lane Activity PASTOOR WEFASTMISEL Tols FAST La b in als FAST LANH Successfully Violaiton Surrnusfully Motion OtaDay Collected D a y collected issues 1-lan Monday 25 16 Jun Tuesday 2-lun Tuesday 10.325 26 17-Jun Wednesday -Jun Wednesday 8.978 18 Thursday 9,300 4-Jun Thursday 9916 Hideg 5 Jun Friday 2021 Sunday 2,053 22 None 265 23 Jun Tuesday 3.412 25 24 3 Videos - Wednesday 9213 23 2.3 Tursday 11- Thursday 8.271 22 26 Ridas 12-Jun Frey 20 - Saturday 13-Jun Saturday 14 JUB Sunday 29 Jun Monday 15. Mandy 24 On Tuesday B.045 GORY 11 8,075 A TAST Lage system shold not malluation properly maintained, although a mall possibles that some out of its been team cycles. This Lista ponability as free of these dienos meto plazamana er a FAST Lantation and over a thousadbu Les og vehicle be ope n ed the pooble adored the machiningane Sce n s at the ting pointed out WAS Cred for the loal to ma b enter ASTD violations each day, ay Schange in balaca ove visible. Other e meeting resebered perus pe loc ul cats, particularly c-ch , to pict the daily nmber of violations insae by PAST lane, and how these pilot projects filed. "We've been over his before," said or of the managers. "The usual quality control c ant stuttu 't wort for PST lanes. Every time we dwup & chart from the case of a flawlessly func Loning lang, Ilust indicates Ural lane is out of control. We're stuck before we even statt using the chart. The manager at exit volunteered in I T lane as the site for yet another pilotpro ect to develop a relevant tool to monitor FAST lane violations, one that would rectly senal any changes to be acted on quickly by closing the lane Exit 53's FAST lane e n was uporaded less than a year ago, and preventative maintenance was Questions 1. Use this data to create a chart for daily TAST lane violations issued, assuming 2 -3.0. This is the method that WMA attempted to actier. Mark the past dala on the chant. Does your chat indicate that the FAST lane system was in controlar these past 30 day? 2. One employee at exit members the previous pilot project and says "That wasn't ever going to work to can't just watch the best valtions, because a var les with ember of seach day. This oployee is plenice to the choice of a cartes apchat, but WMA ad that a p-chart could be and because there is a found in Popara adaptation of thepcha methodology and each te propo s ta the TASTset are issued i n each day. Does the chart indete cu stem is in control 3. Na ceste a tarting system that we WMA's Mosting problem. The set to this lies in the employee's previous statement and in an additional remark about the carlier unsuccessful pilot project "Why did they think as we'd be able to use the same chart all week BIBLIOGRAPHY Waclestone, J. ed. 2010. AMICS Dictionary, 13th ed. Chicago: Aries. The Associatia fur Operations ManaRCELL Evans, J., and W. Lindsay, 2002.7 tonment and cool of wellry, 5th ed. Cincinnati, OH: South-W / m Luni Hayle, D. 2009. ISO 5000 Quatty Systems Hundbok och ed. Oxford, UK: Sleegter. MoClave, J. E. P. G. Benson, and Snach. 2009. Scarico Business and Economies U Saddle R ENU: Prentice Hall. Tag, N. 2005. The Query Toolbox, and ed. Stilwaukee, WE: ASQ Quality Press