Abstract: Aspects of the disclosure provide for enabling distribution or prepositioning of roadside assistance vehicles within a service area for a fleet of autonomous vehicles. For instance, a clustering approach may be used to determine an assignment identifying a plurality of cluster locations and respective assigned ones of the roadside assistance vehicles. The clustering approach uses a number of clusters corresponding to the number of the roadside assistance vehicles. Distribution information may be sent to computing devices associated with technicians of the respective assigned ones of the roadside assistance vehicles. The distribution information may enable the technicians of the respective assigned ones of the roadside assistance vehicles to proceed to the cluster locations of the determined assignment.

Abstract: An extrudable aluminum alloy for a micro channel and round tube heat exchanger application including silicon in an amount that ranges between 0.15 and 0.30 wt %, iron in an amount that is less than or equal to 0.15 wt %, manganese in amount that ranges between 0.50 and 0.90 wt %, zinc in amount of no greater than 0.03 wt %, copper in amount of no greater than 0.03 wt %, and nickel in an amount of no greater than 0.01 wt %.

Abstract: An aluminum alloy for heat exchanger applications and a method for fabricating a billet comprising the aluminum alloy are disclosed. The aluminum alloy includes an amount of silicon between 0.01 and 0.08 wt %; an amount of iron between 0.03 and 0.12 wt %; an amount of manganese 0.50 and 0.90 wt %; an amount of titanium 0.1 and 0.15 wt %; an amount of zinc between 0.05 and 0.10 wt %; no more than 0.03 wt % copper; no more than 0.008 wt % nickel; no more than 0.03 wt % other impurities; and a balance of aluminum. The ratio of iron and silicon to manganese ranges from 0.044 to 0.40, and the total wt % of zinc and titanium is between 0.15 and 0.25 wt %. Fabrication of the billet includes heating and soaking the billet to a temperature between 575° C. and 625° C. and cooling the billet to 350° C. at a controlled rate between 100° C. and 225° C. per hour.

Abstract: An extrudable aluminum alloy for a micro channel and round tube heat exchanger application including silicon in an amount that ranges between 0.15 and 0.30 wt %, iron in an amount that is less than or equal to 0.15 wt %, manganese in amount that ranges between 0.50 and 0.90 wt %, zinc in amount of no greater than 0.03 wt %, copper in amount of no greater than 0.03 wt %, and nickel in an amount of no greater than 0.01 wt %.