Task 8 (Module 5.2)

Task 8 (Module 5.2)

by Kristin Tovaas -
Number of replies: 9

Please respond to the following questions in the Forum:

Your task this time is a calculation. Your job is to review the contents of module 5.2 and, using the data below, calculate the MPI for the Heart of Budapest segment using the density- based LOS values (no priority factor).

Task 8 info
In reply to Kristin Tovaas

Re: Task 8 (Module 5.2)

by Jelena Nikolić -

MPI(before)=70 (C), MPI(after)=70 (C)

Considering calculation MPI is the same before and after implementing measure, which means that measures don't have negative impact on congestion, but the numbers of pedestrians and cyclist increased and public space is more attractive, so probably reconstruction will bring good results if the impacts on environment, economy and health are taken into account.

In reply to Jelena Nikolić

Re: Task 8 (Module 5.2)

by Frederic Rudolph -

Many thanks for your replies. Yes, I think the lesson learned from this task is that manytimes you can introduce walking/cycling measures without deteriorating LOS.

In reply to Kristin Tovaas

Re: Task 8 (Module 5.2)

by Francisco Faria -

Before Car Bike Pedestrian
LOS indicators 19 4 0,26
LOS C C C
Utility Points 70 70 70
Weighting 1 1 1
pers/h** 2565 20 1300
MPI 70
LOS C


After Car Bike Pedestrian
LOS indicators 25 3 0,24
LOS D C* B
Utility Points 50 70 90
Weighting 1 1 1
pers/h** 2250 300 1500
MPI 66
LOS C

*B is for less than 3

**considering an occupancy of 1,5 persons per motor vehicle



In reply to Kristin Tovaas

Re: Task 8 (Module 5.2)

by Predrag Živanović -

If all modes are equally weighted:

MPI (Before) = 70  C, * I am not sure is disturbance rate is good enough for comparative analysis of LOS for cycling because there was not lane for cyclists and it sure must have been far more disturbing then afterwards due to conflicts with other transport modes.

MPI (After) = 70 C , if car occupancy is 1,0.   

or MPI (After) = 63,5 C , if car occupancy is 2,0. i.e. it stays C    

In reply to Kristin Tovaas

Re: Task 8 (Module 5.2)

by Violeta Mihalache -

MPI (before) =70 C,

MPI (after) = 70 C

A good project: increased number of cyclists and pedestrians; the whole area is improved in terms of attractiveness and urban environment.


In reply to Kristin Tovaas

Re: Task 8 (Module 5.2)

by Cristina Villalón Robles -

Module 5.2: Calculation, aggregation and determination of threshold

Task 8

Your task this time is a calculation. Your job is to review the contents of module 5.2 and, using the data below, calculate the MPI for the Heart of Budapest segment using the density- based LOS values (no priority factor).

MPI before: 70 (UP) / C (LOS)

MPI after: 70 (UP) / C (LOS)


In reply to Kristin Tovaas

Re: Task 8 (Module 5.2)

by Timothé Bronkhorst -

Pers/car : 1


Pers/car : 1,2



Before After


Before After
Car LOS C D
Car LOS C D
Points 70 50
Points 70 50
Car/h 1710 1500
Car/h 1710 1500
Pers/h 1710 1500
Pers/h 2052 1800
Pedestrian LOS C B
Pedestrian LOS C B
Points 70 90
Points 70 90
Ped/h 1300 1500
Ped/h 1300 1500
Pers/h 1300 1500
Pers/h 1300 1500
Bikes LOS C C
Bikes LOS C C
Points 70 70
Points 70 70
Bikes/h 20 300
Bikes/h 20 300
Pers/h 20 300
Pers/h 20 300











Before After


Before After
MPI Points 70 70
MPI Points 70 68
LOS C C
LOS C C

I also find a LOS of C before and after the measures (sorry for the tables, the presentation is not easy to read...). This project is neutral in term of multimodal impact.

Some points can be discussed :

- The results don't change much if we put 1, 1.2 or 2 pers/car, it only goes down of a few points but this doesn't change the LOS.

- For the pedestrian, the LOS goes from C to B but only after going down by 0.2 points (0.26>0.24), which is only a small gain. If we stay at a LOS of C for pedestrian after the project, the MPI points are going down to 60, which is less good. If we put 2 pers/car, the LOS goes up to D for the project...

- Like in every simulation project, we must be aware that numbers can be "manipulated" and every hypothesis and data used for the calculations must be validated by the different partners before the results are submitted.

In reply to Kristin Tovaas

Re: Task 8 (Module 5.2)

by Amiram Rotem -

Before the improvements : MPI=70 - LOS C

After the project :  MPI= 70 -  LOS D

Since the MPI is the same ,it means that improvements, e.g increasing the numbers of pedestrians and cyclist, did not have bad impact on congestion in that segment.  But if we add the social and the environmental aspects of the project, i can say that  the overall impact has improved .