1. Thinking out loud

2. Traffic Scenario 1A 2B 2A 1B

3. How would you set up the intersection?
An exercise in Monday morning quarterbacking

4. Basic Model Traffic Lane Max Length of Light Minimum Length of Light
Time for car to clear intersection
# Of Cars
Time Needed
Time Given (s)
# Of Cars Leftover
Lane 1A
Lane 1B
Lane 2A
Lane 2B

5. IF loving you is wrong THEN I don’t want to be right

6. IF-THEN Statements If, Then, Else (a.k.a. Otherwise)
What is your procedure?
In excel this is written as :
IF(Condition, True Value, False Value)

7. Sample Problem 1
If a driver is going over 65 mph a speeding ticket should be issued.

8. Sample Problem 1
Speed > 65
Yes No
Issue Ticket
No Ticket

9. Sample Problem 1 Speed Caught Traveling Action To Be Taken 65
Issue Ticket 55
No Ticket
Speed Caught Traveling
Action To Be Taken 65
=IF(A11<65,"No Ticket","Issue Ticket") 55
=IF(A12<65,"No Ticket","Issue Ticket")

10. Nested IF-THEN Statements
What if you have a second condition?
IF(Cond, True ,IF(Cond, True, False))

11. Sample Problem 2
If a driver is going over 65 mph or under 45 mph a speeding ticket should be issued.

12. Sample Problem 2 Speed < 40 Yes No Issue Ticket Speed > 65 Yes
No Ticket

13. Nested IF-THEN Statements
Speed 65
=IF(A11>64,"Ticket",IF(A11<40,"Ticket","No Ticket")) 14
=IF(A12>64,"Ticket",IF(A12<40,"Ticket","No Ticket")) 55
=IF(A13>64,"Ticket",IF(A13<40,"Ticket","No Ticket"))
Speed 65
Ticket 14 55
No Ticket

14. Basic Model Traffic Lane Max Length of Light Minimum Length of Light
Time for car to clear intersection
# Of Cars
Time Needed
Time Given (s)
# Of Cars Leftover
Lane 1A
Lane 1B
Lane 2A
Lane 2B

15. Directions
Break the problem into steps and verbalize what you want to do with your partner.
Draw a flow chart that outlines your solution
Add columns to your spread sheet and perform to perform the necessary calculations in stages