RE: Running Simulations and Demo Databases

-----Original Message-----
From: users-bounces@urbansim.org [mailto:users-bounces@urbansim.org]On Behalf Of David Socha
Sent: Saturday, 15 July 2006 1:23 AM
To: Joseph Nunez; users@urbansim.org
Subject: RE: Running Simulations and Demo Databases

Joe,

 

The database section of the manual does not yet conform to the UrbanSim 4 standards.  It is very close, but different in several ways.

 

One of these ways is models_variables - this table is no longer used in UrbanSim 4.  UrbanSim 4's integrated estimation process uses a Python file (for instance, see opus.psrc.estimation.estimation_HLCM_variables.py) to specify the set of model variables to use.  The estimation process then creates coefficients and specification objects, which may be stored as tables in the database, so that a later simulation can re-create the coefficient and specification objects.

 

We plan to add a tutorial on estimation, hopefully within the next few weeks.

 

David

 

David Socha

Center for Urban Simulation and Policy Analysis

University of Washington

www.urbansim.org

206 616-4495

---

From: users-bounces@urbansim.org [mailto:users-bounces@urbansim.org] On Behalf Of Joseph Nunez
Sent: Thursday, July 13, 2006 9:32 PM
To: users@urbansim.org
Subject: Re: Running Simulations and Demo Databases

Liming,

 

Thanks for your help, you have certainly pointed me in the right direction.

 

Reading through the user manual, the LPM model requires that its variables must be present in the model_variables. I am using an old model_variables table with the JAVA CLASS column still pointing to java paths not to OPUS. I have tried tinkering with this table changing path names and column names but to no avail, i will continue reading through the code to better understand how everything is pased from the db.

 

That being said, Does anyone have the table schema for URBANSIM4 model_variables table??, ( in the user guide it merely refers to it).

 

if not, I will patiently await for documentation of the Database tables section (Chapter 8) to be completed.

 

Until then.....Hope you guys had a successful workshop.

 

Best Regards,

 

Joe

 

 

 

 

 

 

 

 

 

-----Original Message-----
From: "Liming Wang" <lmwang@u.washington.edu>
To: "Joseph Nunez" <joseph.nunez@nieir.com.au>
Cc: users@urbansim.org
Date: Thu, 13 Jul 2006 14:02:20 -0700
Subject: Re: Running Simulations and Demo Databases

Joe,
The error with land price model is because of a change of variable name format in model specification. You can refer to the user guide sections of variable name and specification and coefficients for the new format. We'll also provide some documents on converting from UrbanSim3 to UrbanSim4 soon. For OpenEV you'll need to prepare a prototype_dataset and template OpenEV project file beforehand. It works for the application of PSRC in our environment with some file locations and names hard-coded. Because of compatibility issue, we may eventually phase it out and it won't be supported.

Hope these help.

Liming.

On 7/12/06, Joseph Nunez < joseph.nunez@nieir.com.au> wrote:

Hi all,

 

I have been exploring Urbansim 4. I have just encountered problems with running a simulation and creating indicators for the Eugene_Springfield baseyear 1980. I think this is attributed to that it was made for Ubransim 3 as the Input Database. Is there a sample database for Urbansim 4 (PSRC perhaps)? 

 

1. If there isn't, I have started simple with just simulating the "land price model". I started a simulation but the following error: "No variable ('gridcell.devtype_1'). Looking through the opus.urbansim.gridcell , I have found only devtype_DDD . I do not know how/where this variable is computed from. (I assume devtype is Development Type)

 

2. In creating an Openev_map, do you need to save a opf file beforehand with all the shapefiles loaded within it?  I recieve the following errors: unable to load 'template_region_uga_leg.opf' and get an empty tif file. I have tried opening the Shapefiles for the Eugene_Springfield in Openev but it just crashes the program. (I am on WinXP using Openev_FW)

 

Any advice and comments are greatly appreciated.

 

best regrads,

 

Joe

 

 

 

 

---------------------------------------

Running Land Price Model (from opus.urbansim.models.corrected_land_p

rice_model): started on Thu Jul 13 12:57:22 2006

                opus.urbansim.gridcell.is_in_development_type_group_SSS

                    Creating DevelopmentGroupSet object.

                opus.urbansim.gridcell.is_in_development_type_group_SSS: complet

ed...0.0 sec, total 14740 KB, up 276 KB

                Total number of individuals: 15441

                LPM chunk 1 out of 1.: started on Thu Jul 13 12:57:23 2006

                    Compute variables ...

                    WARNING: No variable ('gridcell.devtype_1', 'devtype_1') fou

nd or an error occured during loading.

Traceback (most recent call last):

  File "C:\Python23\lib\site-packages\opus\urbansim\model_coordinators\model_sys tem.py", line 417, in ?

    s.run(resources, options.is_run_subset)

---------------------------------------------  

 

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