This sound effect can be found on The Edge Edition Volume 1, which was made by The Hollywood Edge. It is identical to the first part of the sound effect, Hollywoodedge, Air Horn Blasts Truck PE079601, which is available on The Premiere Edition Volume 1.
Sound Effects Description
Truck, Air Horn, Low Pitched, Single Long Blast.
Clean, Full Length and Unedited Link to the Sound Effect