In mid December 2016 Sfbike.org (SanFrancisco Bike Coaltion) issued a warning regarding how Uber autonomously driving cars make right turns. At nearly the same time Uber has de-camped from CA (see e.g. this 12/22/2016 article from recode), literally loading their fleet onto car carriers and driving them to…. Arizona! The decision was based on CA’s regulatory environment for autonomously-driven cars; Uber decided they didn’t want to pursue special permitting which the CA DMV said was required, whereas Arizona has no special permitting required — so long as there’s a live driver sitting in the driver’s seat. More about Uber, below. Continue reading How to make a right turn
I have trouble laying my hands on this sometimes, so here is a source for the AASHTO Guide for the Development of Bicycle Facilities,1999 — which is the most recent final version; it’s a largish (2.5MByte) .pdf available from the here, via azmag.gov (Maricopa Assoc of Governments). You can purchase the book directly from AASHTO
This book gives the accepted guidelines for dimensions and usage of various bicycle facilities, i.e. bike lanes, wide curb lanes.
There is also a DRAFT revision dated February 2010: DRAFT AASHTO Guide for the Planning, Design, and Operation of Bicycle Facilities (link now dead), possibly because… Continue reading AASHTO Guide for the Development of Bicycle Facilities
Here are two shots of Chandler Blvd in Phoenix westbound, the first one is approaching 25th Street, and the second is at the intersection with 24th Street, going westbound. Continue reading Critical Width