Ef­fi­cient off-peak de­liv­er­ies

Off-peak de­liv­er­ies trial at Stock­holm us­ing ‘silent’ trucks re­sulted in a sig­nif­i­cant up­take in ef­fi­ciency.

Commercial Vehicle - - WHAT'S INSIDE - Team CV

Off-peak de­liv­er­ies trial at Stock­holm us­ing 'silent' trucks re­sulted in a sig­nif­i­cant up­take in ef­fi­ciency.

Atrial at Stock­holm, Swe­den, brought to the fore two dis­tinct ben­e­fits of off-peak

_ de­liv­er­ies op­er­a­tional ef­fi­ciency and en­vi­ron­men­tal ben­e­fits. In many Euro­pean cities, in­clud­ing Stock­holm and Lon­don, de­liv­er­ies are pro­hib­ited at night to re­duce the noise im­pact in res­i­den­tial ar­eas. For the off-peak, or out- of-hours de­liv­er­ies trial, car­ried out by Swe­den’s KTH Royal In­sti­tute of Tech­nol­ogy, two trucks were adapted for the tasks such that they were given noc­tur­nal ex­emp­tions. Both the trucks that par­tic­i­pated in the trial were fit­ted with noise-re­duc­tion equip­ment, such as silent roll cages, and noise sen­sor tech­nol­ogy. Volvo sup­plied a diesel-elec­tric hy­brid

FE truck, fit­ted with a de­vice that en­abled it to au­to­mat­i­cally switch from diesel power to elec­tric power when en­ter­ing a re­stricted ur­ban zone, keep­ing noise and emis­sions to a min­i­mum. The ‘silent’ truck was used by su­per­mar­ket chain Lidl to de­liver to three city cen­tre stores be­tween 22:00 and 06:00 hrs. It was ob­served that the Volvo FE hy­brid ‘silent’ truck was able to com­plete three drops, sig­nif­i­cantly el­e­vat­ing ef­fi­ciency.

Be­fore the ‘silent’ truck came around, Lidl op­er­ated at peak morn­ing times. It needed three con­ven­tional trucks to serve its city cen­tre stores. Off-peak de­liv­er­ies car­ried out by one ‘silent’ truck en­sured that there was no need for two other trucks to op­er­ate. The two other trucks could be sim­ply re­moved from the road, el­e­vat­ing ef­fi­ciency. In ad­di­tion, the ‘silent’ truck was also able to travel over 30 per cent faster than the trucks that op­er­ated dur­ing the rush hour. Said Anna Pernestål Bren­den, a re­searcher at KTH’s In­te­grated Trans­port Re­search Lab­o­ra­tory, that morn­ing com­muters are spared hav­ing to share the road with three heavy duty trucks. With one truck do­ing the work of three, there is a big jump in ef­fi­ciency. The sec­ond truck used for the trial was a bio­gas-fu­elled Sca­nia R480. It was used to trans­port fresh goods to a num­ber of city cen­tre ho­tels and restau­rants for tem­per­a­ture-con­trolled dis­trib­u­tor Mar­tin and Servera. The truck’s driv­ing speed was 59 per cent higher than in the after­noon peak. Off-peak de­liv­er­ies meant routes could be planned more ef­fi­ciently and did not have to fac­tor in con­ges­tion.

With one of the main rea­sons of con­duct­ing the trial be­ing the ef­fect of the noise of the ve­hi­cle on res­i­dents dur­ing off-peak hours, the trial had the driv­ers fol­low spe­cial rules to en­sure the qui­etest of night-time de­liv­er­ies. The trucks would not have a re­vers­ing alarm, and there would be no talk­ing on the mo­bile phone out­side the ve­hi­cles. It was ob­served that trucks un­load­ing within city cen­tre en­vi­ron­ments were not no­tice­able to res­i­dents. Only those in one qui­eter, outer sub­urb ex­pe­ri­enced min­i­mal noise dis­rup­tion. Averred Bren­den, that the noise peo­ple com­plained about was of un­load­ing the truck, and not of driv­ing it.

⇦ Off-peak de­liv­er­ies trial at Stock­holm high­lighted the ad­van­tages in terms of truck sav­ing, fuel sav­ing, and road space sav­ing.

⇩ Off-peak de­liv­er­ies im­proved ef­fi­ciency of op­er­a­tion con­sid­er­ably.

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