pasadangerous = Making Pasadena a safe bicycle city
124 people were killed in crashes while biking in California in 2012, representing 4% of the 2,857 people killed on California roads and highways. This is a 7% increase over the 116 people who lost their lives while biking in 2011.
existing scenario
Case of Pasadena, CA








petition by Caltech to improve the east - west bike routes
" We petition the City of Pasadena to extend bike lanes on Cordova Ave west of Lake Ave and to consider installing bike lanes on the very wide one-way streets Green St and Union St. In addition, we ask Pasadena to consider creating a separated bike lane on Del Mar Ave to improve the use of this route for cyclists. These improvements will create an east-west bike corridor and help make streets safer for everyone - cyclists, pedestrians, and cars alike. "
existing bike routes and traffic data from Pasadena transportation department
After studying the traffic data plans, existing and proposed bike routes from Pasadena transportation department, it was concluded that the east west corridor especially the Del Mar Blvd needed some special efforts in order to make bicycling safe on these roads.
Final proposal
Action plan
Step 1 :
MODIFICATION IN PROPOSED BIKE PLAN
Step 2 :
INSTALLATION OF BICYCLE INFRASTRUCTURE – PARKING & RENTAL FACILITIES
Step 3 :
REDESIGNING CLASS III ENHANCED BIKE ROUTE CLASSIFICATION from existing Pasadena Bike route
Step 4 :
IMPLEMENTATION OF SENSOR BASED INTERSECTIONS ALONG WITH SOLAR BIKE LANES
Step 5 :
INSTALLATION OF BICYCLE TRACKING DEVICE ON HEAVY VEHICLES
proposed bike plan
Proposed roadside Bike Parking + Bike rental facility
Diagonal bike parking on the pedestrian paving (footpath) along with Bike rental facilities at the shuttle bus stations. The Bike rental facility is based on a subscription model as the Zip Car.
proposed class iii enhanced bike route design
All dimensions are in metres.
proposed intersection design and traffic light sequencing
For illustration purpose, the Del Mar Blvd and Los Robles intersection was considered.
Proposal 1
This proposal uses a separate sequence for cyclists and pedestrians.





Proposal 2
In this proposal the cyclist and vehicle follow the same sequencing simultaneously.







cost estimates
Cost of a Dedicated Paved Bike Path or sidewalk, at least 8 feet wide : APPROX. $ 600,000 per mile
Striping/Painting Bike lane : APPROX. $ 11.50 per sq.ft
Bicycle symbols / markings : APPROX. $ 200 each
Dedicated Bicycle Signals : APPROX. $ 12,800 each
Bike Detection Sensor : APPROX. $ 500 each
FOR EXAMPLE : DEL MAR BLVD FROM MARENGO AVE TO LAKE AVE (PART OF PROPOSED CLASS III ENHANCED BIKE ROUTE)
TOTAL LENGTH OF THAT SEGMENT : 0.8 MILES
MAJOR INTERSECTIONS : 4
TOTAL ESTIMATED COST OF MAKING THE ABOVE SEGMENT AS PER NEW DESIGN :
BIKE PATHS + SIDEWALK : APPROX. 1.6 MILES IN TOTAL COST : $ 960,000
BIKE LANE STRIPING / PAINTING : APPROX. 40000 SQ.FT COST : $ 460,000
DEDICATED BICYCLE SIGNALS : 4 NUMBERS COST : $ 51,200
BIKE DETECTION SENSORS : 16 NUMBERS COST : $ 8,000
TOTAL COST ESTIMATE FOR PREPARING A 0.8 MILE CLASS III ENHANCED BIKE ROUTE ACCORDING TO THE NEW DESIGN WOULD BE APPROXIMATELY $ 1,479,200.
Note : Pasadangerous was visualized by Ravi Patel and Ying He.