Latest Contributions by RamB

Please check: 1. the connectivity rules of your network dataset (endpoint, midpoint, any vertex) 2. may be some mistake with definition of hierarchy (wrong coding of roads) 3. May be some accidental mistake with oneways 4. most often than not this error occurs when line segment are not connected at intersections (visually they might appear to be connected), so check for such issue also. regards, ... View more

Yes, you can do it, if you can program to loop OD matrix. I dont know what is your background. if you are studying urban planning or transport planning or even civil engineering,  It is Easier to use excel for your simple problem provided you understand what is route assignment. of course and many other open software which can do it better and more efficient than ArcGIS NA for your kind of problems. regards, ... View more

hi, before i make suggestions or guess, I would like you to refer to this link This is an extension that has similar purpose. may be you dont need NA ? Have a look at that, may be it helps your cause. regards, ... View more

hi, that is strange, it never happened to me. May be some analysis settings are still not proper. If you post screenshots, somebody can suggest solutions, may be people from ESRI. regards ... View more

hi, you could use location allocation tool and in analysis settings with the following option " MAXIMIZE_CAPACITATED_COVERAGE �??This option solves the location problem where facilities have a finite capacity. It chooses facilities such that all or the greatest amount of demand can be served without exceeding the capacity of any facility. In addition to honoring capacity, it selects facilities such that the total sum of weighted impedance (demand allocated to a facility multiplied by the impedance to or from the facility) is minimized. ... View more

hi, you could use location allocation tool and in analysis settings with the following option " MAXIMIZE_CAPACITATED_COVERAGE �??This option solves the location problem where facilities have a finite capacity. It chooses facilities such that all or the greatest amount of demand can be served without exceeding the capacity of any facility. In addition to honoring capacity, it selects facilities such that the total sum of weighted impedance (demand allocated to a facility multiplied by the impedance to or from the facility) is minimized. ... View more

Uhmm, probably not an issue. I suggest you to take out a day, select a few intersections within your study area. Take measurements observing vehicles with a stop watch. for half hour at each location. This way, you will have more confidence on your assumptions (no longer assumptions if you do  this survey) . Forms for such survey are readily available in National Codes established by National bodies that engage in transportation survey methods and formulations of the country or state as applicable. regards, ... View more

I would not advice using point barriers for two reasons: 1. Stop signs are directional restrictions and the best way to do this is building them into network segments and giving directional control (AB may have stop sign but BA may not) 2. Stop signs do not mean a road stops there, instead a vehicle has to stop and proceed (wait time) regards ... View more

you can cut a little piece of line segment just beneath the stop sign and assign it abnormally high value of resistance (say 1000 minutes) ... you can do this both direction or one direction as your situation demands. 🙂 regards ... View more

You can duplicate your layer and then use spatial join. while doing spatial join, use the , "comma" delimiter for multiple results (from the field mapping window) regards, ... View more

Hi, It depends on where (s) you want your velocity (Vf) depending on your slope (theta). if you have the details at s , then you can calculate the speed. For example if you want to calculate at the middle of your segment, you can take s = half of length of that segment, theta you can interpolate between your two slope values and speed you can take of the previous segment (Vi) and then find Vf you need to be careful about your direction of travel because then the theta will be positive or negative based on your conventions. regards, ... View more

You can use the simple formula of kinematics, you can search for "velocity along a inclined plane" Just not to repeat myself, you can look here regards ... View more

Please see my post here regards, ... View more

I do not think this is possible. I would suggest may be create a manhattan kind of network for desired resolution using this ... View more

Tolerance of location is usually an issue with changing scales. Are the input locations exactly same (same coordinates) ? ... View more