1. LANE CLOSURE CHARTS CHART DEVELOPMENT AND DELAY DAMAGES (District 3) OBJECTIVE To become familiar with the lane closure chart development process and delay calculation

2. PURPOSE To minimize traffic delays caused by planned lane closures.
To maximize safety inside and outside the work zone.
To create a level playing field for all Contractors bidding on our projects.

3. FACTS Charts are developed using the latest available traffic volumes.
The basic theory in developing the charts is based on actual field operation experience.
Each project is analyzed to balance the needs between the Contractor and the motoring public.

4. FACTS (CONT.)
We perform field observations and consult with field personnel to determine the length of time required for specific construction or maintenance operations.
We always try to accommodate your request within our limited boundary.

5. FREEWAY CAPACITY
Typically one lane can handle between vph.
Capacity is affected by geometric alignments, lane width, truck volume, weather, # of lanes open for traffic to use and “GAWKING “ (type of operation ).

7. Lane Closure Chart Background
Chart is based on “0” delay for construction and permit projects, and minutes Delay for maintenance work.
When demand is less than capacity, the freeway lane is permitted to be closed.
We use an average capacity of 1500 vph per lane for construction and permit projects (can vary depending on location, conditions, etc.).
Lane closure charts are based on traffic demand, therefore, we specify number of lanes that are required to OPEN for public to use, not the number of lanes that can be closed.

8. LANE CLOSURE CHART For a typical 5 lane freeway :
Demand < 1500, 1 lane is required to be open.
1500 <Demand< 3000, 2 lanes are required.
3000 <Demand< 4500, 3 lanes are required.
4500 <Demand< 6000, 4 lanes are required.
Lane Closure hours for the “Working day before designated legal holiday” is the same as a Friday, except no work will be permitted after the morning closure.
“No lane closure permitted”; no work permitted on any designated legal holidays.

10. LANE CLOSURE CHART EXERCISE

14. LANE CLOSURE CHART EXERCISE
Develop a lane closure chart based on the traffic demand for 7-12 and 7-13 and 7-14
Use 1500 vph per lane.
15 minutes to complete this exercise.

15. ANSWER

17. Detailed description of proposed work (ALL).
Information to Provide When Requesting a Lane Closure Chart and Maintaining Traffic Specifications
Complete set of plans.
Detailed description of proposed work (ALL).
Identify any work that may require a full freeway closure.
The more project information you provide EARLY,
the less problem you will have during construction.

18. The DTM’s Role with the Lane Closure Chart

19. DISTRICT TRAFFIC MANAGER
Activities that require Lane Closure Approval:
Construction
Maintenance
Encroachment Permits
Special Events/Filming
Any activities which may impact traffic on the
State Highway System

20. Lane Closure Approval and Monitoring Procedures
Information Flow - Relation to TMP Strategies
Lane Closure Requests
Via Fax, or Intranet*
DTM
Requesting Units
Construction, Maint.,Permits
Need more info
(contingency/detour plan)
Not recommended
Review request /
Coordinate closures
If anticipating significant delays
CTM
TMP modification
i.e. exceptions to closure charts
(for construction projects only)
Lane Closure # Assigned
Dist./HQ LCRC**
If recommended, forward to DTM for review and approval.
Prepares Updated Closure Report
PIO/CHIN/CHP/Other Stakeholders
*Will implement with LCS
**LCRC: Lane Closure Review Committee

21. Delay Damages A+B Bidding Lake Tahoe Basin

22. DELAY DAMAGES
Standard Special Provision (SSP) was introduced in late 1998 and fully adopted by District 3 in mid-1999.
Contractor is required to submit lane closure request ONE week in advance for Caltrans approval.

23. DELAY DAMAGES (CONTINUED)
Contractor is required to provide a “Contingency Plan” at the request of the Resident Engineer.
Damages for late lane closure pickup provide a “lever” for the RE to charge the Contractor.
Delay damages concept for late opening is agreed to by CALTRANS and the Association of General Contractors. Estimated traffic delay must equal or exceed $6000 per hour for the first two hours beyond the time when all lanes are opened to traffic as specified on the lane closure chart.

24. DELAY DAMAGES (CONTINUED)
Deputy District Director of Construction’s concurrence is required with the delay damages before we can include as part of the SSP in most Districts. In District 3 the TMP Manager has this authority.
If more than one chart/delay damage, worst case applies.
Delay cost for each truck is based on $0.40 per minute and $0.15 for each car.
SSP applies to ALL projects requiring lane closures.

25. DELAY COST

26. demand = 8086 veh ( 6:00 am to 7:00 am)
2 lanes open for traffic
( with total capacity = 3000 vph)
At 7:00 am, 5,086 veh are left behind
(8086 veh veh = 5086 veh)
At 8:00 am, 13,099 veh are left behind
(5086 veh + (11013 veh veh) = veh)

28. SSP 10
8,700.00

29. A+B Bidding -- Road User Costs
The Contractor Bids:
Cost of Construction + Number of Days
A B
A $$$ Value for a “Day” is calculated -
Road User Costs

30. A+B Bidding -- Road User Costs
What is Road User Cost?
Road User Cost (RUC) is defined as the estimated daily cost to the traveling public resulting from the construction work being performed. That cost primarily refers to lost time caused by any number of conditions including:
Reduced roadway capacity that slows travel speed and increases travel time.
Delay due to a queue condition.
Detours and rerouting that adds to travel time.

31. A+B Bidding -- Road User Costs
Project Selection
Project Cost is > $5,000,000
Traffic restrictions, lane closures, or detours result in high road user costs: RUC >$5000.
Safety concerns or impacts to the local community warrant expediting the project
The project is relatively free of third party conflicts.
It is in the public’s interest to complete the project as soon as possible.
No right of way clearance issues.

32. Lake Tahoe Basin Restrictions on Lane Closures July 1 – Labor Day.
No Weekend Work starting Friday at Noon (8 AM on I-80).
Restrictions on Night Work.
No closures near any homes at night with a few exceptions.
Limited Construction Season.
May to mid-October. (Can start to mobilize in mid-April)
Many Economic, Environmental and Political Concerns regarding traffic delays.

33. Lake Tahoe Basin

34. QUESTIONS ???