ITE Journal May 2018 - 30

The ATSRs propose mitigation measures to reduce collisions
where a clear pattern can be identified for which there is an effective
countermeasure.

Implementation of Effective Countermeasures to
Reduce Bicycle Collisions
The City of La Quinta recognized the trend of rapidly rising bicycle
collisions shown in Table 1, and in 2015 began a major effort
to implement the following countermeasures to reduce bicycle
collisions on public streets maintained by the City:
Lane Diets: As part of pavement resurfacing projects, on-street
bike lanes were provided where they did not previously exist. This
was done through narrowing travel lane widths to 10 or 11 feet in
order to reduce traffic speeds and provide sufficient pavement to
stripe on-street bicycle lanes. The minimum width of the bike lanes
are 6 feet as measured from the face of curb. Refer to Figure 1 for an
example of a location where lane diets were implemented to provide
on-street bike lanes (In the before condition, no striped bicycle
lanes existed).
Video Detection Loops: The City has been gradually changing
detection at the 55 traffic signals it maintains from in ground

Marban Multimedia Productions

Across the United States, communities are committing to Vision
Zero. In addition to setting a goal of zero traffic deaths and severe
injuries, Vision Zero also commits communities to a fundamental
shift in how they approach traffic safety. A hallmark of Vision Zero
in the United States is the creation of action plans. From mid-sized
communities like Fremont, CA and Columbia, MO to big, urban
cities like Los Angeles, CA, Boston, MA, and Austin, TX, these
action plans are intended to lay the groundwork for the strategies
that should move communities from vision to action and help
achieve the goal of zero traffic deaths and serious injuries.
As part of its Action Plan to reduce collisions on publicly
maintained streets, the City of La Quinta, CA, USA (population
41,000) has been preparing Annual Traffic Safety Reports (ATSRs)
each year since 2006. The reports use CrossroadsTM software to
identify:
ƒ Intersections with the highest number of intersection collisions;
ƒ Road segments with the highest number of mid-block collisions;
ƒ The locations of all pedestrian collisions and bicycle collisions;
and
ƒ The locations of all single vehicle collisions, night time collisions
and collisions involving parked vehicles.

Figure 1. Lane Diet to Provide Bike Lanes
30

May 2018

i te jo urn al



Table of Contents for the Digital Edition of ITE Journal May 2018

President’s Message
Director’s Message
People in the Profession
ITE News
ITE, FHWA, and Carmanah Rally to Keep Rectangular Rapid-Flashing Beacons in Our Safety Toolbox
Improving Arterial Roads to Support Public Health: How Can We Do This?
ITE’s Transportation and Health Initiative
Technical Programs Division Spotlight
Industry News
Calendar
Where in the World?
Member to Member: Jing Zhang, AICP, PTP, LEED AP ND
Countermeasures Prove Effective in Reducing Bicycle Collisions
Guidance on Signal Control Strategies for Pedestrians to Improve Walkability
Factors Affecting Vehicle Passing Distance and Encroachments While Overtaking Cyclists
Measuring the Success of Modal Shift: The Impact on Last Mile Connectivity
Professional Services Directory
ITE Journal May 2018 - 1
ITE Journal May 2018 - 2
ITE Journal May 2018 - 3
ITE Journal May 2018 - President’s Message
ITE Journal May 2018 - 5
ITE Journal May 2018 - Director’s Message
ITE Journal May 2018 - 7
ITE Journal May 2018 - People in the Profession
ITE Journal May 2018 - 9
ITE Journal May 2018 - 10
ITE Journal May 2018 - ITE News
ITE Journal May 2018 - ITE, FHWA, and Carmanah Rally to Keep Rectangular Rapid-Flashing Beacons in Our Safety Toolbox
ITE Journal May 2018 - Improving Arterial Roads to Support Public Health: How Can We Do This?
ITE Journal May 2018 - 14
ITE Journal May 2018 - 15
ITE Journal May 2018 - 16
ITE Journal May 2018 - ITE’s Transportation and Health Initiative
ITE Journal May 2018 - 18
ITE Journal May 2018 - Technical Programs Division Spotlight
ITE Journal May 2018 - Industry News
ITE Journal May 2018 - 21
ITE Journal May 2018 - Where in the World?
ITE Journal May 2018 - 23
ITE Journal May 2018 - 24
ITE Journal May 2018 - 25
ITE Journal May 2018 - 26
ITE Journal May 2018 - Member to Member: Jing Zhang, AICP, PTP, LEED AP ND
ITE Journal May 2018 - 28
ITE Journal May 2018 - Countermeasures Prove Effective in Reducing Bicycle Collisions
ITE Journal May 2018 - 30
ITE Journal May 2018 - 31
ITE Journal May 2018 - 32
ITE Journal May 2018 - 33
ITE Journal May 2018 - 34
ITE Journal May 2018 - Guidance on Signal Control Strategies for Pedestrians to Improve Walkability
ITE Journal May 2018 - 36
ITE Journal May 2018 - 37
ITE Journal May 2018 - 38
ITE Journal May 2018 - 39
ITE Journal May 2018 - Factors Affecting Vehicle Passing Distance and Encroachments While Overtaking Cyclists
ITE Journal May 2018 - 41
ITE Journal May 2018 - 42
ITE Journal May 2018 - 43
ITE Journal May 2018 - 44
ITE Journal May 2018 - 45
ITE Journal May 2018 - Measuring the Success of Modal Shift: The Impact on Last Mile Connectivity
ITE Journal May 2018 - 47
ITE Journal May 2018 - 48
ITE Journal May 2018 - 49
ITE Journal May 2018 - Professional Services Directory
ITE Journal May 2018 - 51
ITE Journal May 2018 - 52
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