Surveying, Mapping and GIS

Exploring all aspects of mapping and geography, from field data collection, to mapping and analysis, to integration, applications development and enterprise architecture...

  • Geospatial Technology, End to End...

    Exploring all aspects of mapping and geography, from field data collection, to mapping and analysis, to integration, applications development, enterprise architecture and policy
Showing posts with label planning. Show all posts
Showing posts with label planning. Show all posts

As pressures of economics and tightening budgets, increasing population and infrastructure demands, and limited resources continue to confront states, municipalities, and the nation as a whole, some harsh realities begin to emerge, of how much we can actually, pragmatically accomplish.



As just one example of this, studies of number of vehicle lane miles traveled, compared to number of vehicle lane miles constructed and maintained shows a clear divergence, and sends the message that demand by far has been outstripping supply:

One solution to this would be to just try and keep building roads everywhere – however this is a simplistic, and ultimately unsustainable solution.  Certainly, we DO need to stabilize current infrastructure and address some critical physical issues of capacity bottlenecks, and in some instances we do need to improve circulation and flow in existing transportation networks.  But we also need to change our thinking, in terms of how we assess, monitor and manage traffic and congestion. 



Here, approaches such as use of Intelligent Transportation Systems can provide better visibility into traffic issues and offer solutions toward better management of the transportation network.  


Via any number of technologies, such as embedded sensors, cameras, on-board systems and GPS, message boards and other forms of providing traffic advisory data, and hazards monitoring, traffic crises can be averted, congestion can be managed, and traffic rerouted to make optimal use of existing transportation networks.  The use cases for embedded technology are numerous – while repairing or replacing our crumbling bridges, we can consider technologies to monitor bridge decks for icing conditions, and so on.  We can utilize available traffic data along with spatial, temporal and predictive analysis, e.g. virtual origin-destination studies and other approaches to recognize patterns and trends, toward avoiding traffic jams or even conditions which may be prone to promoting accidents.



As another example, decades of poor, unsustainable planning, zoning, and land development practices have promoted suburban sprawl, pedestrian-unfriendly areas, dependence on cars for even the most mundane of errands, particularly as residential and commercial areas have become separated from each other in artificial models.  In some areas, this has been recognized, as we see a return in some locales to “town center” concepts, where residents can find amenities within walking distance.  Here again, proper tools and geospatial data are required by planners to correct these planning paradigms on a macro scale to recognize these bedroom community relationships, as well as on a micro scale, for example to best maximize pedestrian travel and optimize these local networks.



Additionally, we need to continue to promote mass transit options, aligned to serve core needs – commuters, shopping, and similar needs, based on observation of current traffic flows.  If mass transit becomes enough of a convenience factor, it will continue to be utilized.  Similarly, other mass-transit-related infrastructure needs to be examined.  Here, spatial and temporal analysis of the network can reap great benefit toward maximizing mass transit networks and flows, their alignment to need (supply and demand for transit) and their efficiency.



These types of solutions are in need all around us - for example, as a regular visitor to the Washington, DC area, I often use their otherwise-excellent WMATA Metro system – however many demand issues and patterns rapidly become evident to even the casual eye– in out-lying areas served by the Metro, most of the parking lots and garages fill immediately in the AM and become deserted after work hours – a sign that commuters from outlying areas.  To anyone arriving at, say, 10AM, there’s a good likelihood that some of these parking facilities will be long filled, forcing potential users to travel further before being able to avail themselves of mass transit.  Here again, in even just expanding parking capacity, exists opportunity lost to get traffic off of the streets.



Even these types of things relating to commuting via Metro can also tie into Intelligent Transportation Systems, by providing parking advisories (e.g. saving commuters the grief of trying to find a space in a particular lot when parking may already be full) or by advising pedestrians right at street-level when the next train is arriving or of capacity issues (particularly when it may actually be worthwhile to just walk a few blocks to a different station); or by allowing better means of assessing travel options via web and/or location-aware mobile devices.  Here, geospatial approaches can even allow users to get custom travel directions and planning via walking, mass transit, or for handicapped persons, routing via ADA curb cuts, avoidance of stairs, steep inclines, and other useful information toward ensuring safe and reasonable travel, even delivered directly to their phone or other mobile devices.



With HR1 and discussion of massive infrastructure investments on the horizon, we strongly need to consider an integrated strategy and investment for integrated data and analysis, to include remote sensing, geospatial, temporal and others -  to go hand-in-hand with hard, bricks-and-mortar infrastructure investments – such that we may better manage the assets.  And yes, this could be done independently in dozens of disparate efforts, but would be best leveraged through discourse and technical coordination and information sharing on a broader scale to leverage planning capabilities, modeling, and much more; again, it points up the need for a national vision and strategy for spatial data infrastructure.


If we are going to do this at all, we need to get it right.


While efforts remain local, we need a paradigm shift on many levels- to think beyond our traditional project-by-project approach, and think on a bigger level, to integrate IT into our planning process, as well as integrating it directly into our bricks-and-mortar infrastructure investments, and to better coordinate and leverage investments and efforts to provide this long-term benefit.

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Penn State Geography - Interdisciplinary Conference

Posted by Dave Smith On 11/10/2008 02:02:00 PM 1 comments


From my colleagues at the Penn State Department of Geography:

Please share with colleagues or students who might be interested. Note that the conference is open to undergraduate as well as graduate students, and Sunday's session (sponsored by our SWIG -- Supporting Women in Geography--chapter) will focus on professional development/networking; former AAG President Jan Monk will be the keynote speaker.

The CFP is available as a PDF document at http://www.geog.psu.edu/noboundaries/noBoundaries2009_CFP_Poster_final.pdf

Additional information, including updates as available, can be found at http://www.geog.psu.edu/noboundaries

***********************************************


The graduate students of the Penn State DEPARTMENT OF GEOGRAPHY invite graduate & undergraduate students to present their research at our annual interdisciplinary conference, which takes place on Penn State's University Park campus Saturday, February 28-Sunday, March 1, 2009.

We welcome submissions on subjects including:

Politics, economics, and international development; Ecology and environmental sciences; History, culture, and society; Gender, race, class, and sexuality; Urban & rural policy and planning; Hazards, vulnerability, and global change; GIS, spatial analysis, and geovisualization.

What unites us (and hopefully you) is an attention to space and place, scale, and connections between the human and physical realms. If your research intersects with any of the above, please join us! (more

information: www.geog.psu.edu/noboundaries)


PAPER SESSIONS

Paper sessions will be organized along common themes with 20 minute timeslots (15 minute presentations followed by a 5 minutes of Q and A).

If you would like to present your research, send a title and abstract (250 words or less) to noboundaries@psu.edu.


POSTER SESSIONS

Graduate and undergraduate students are invited to present posters. Send a title and abstract (250 words or less) to noboundaries@psu.edu.

SPECIAL SESSION: BALANCING ON THE ACADEMIC LADDER—SUPPORTING WOMEN IN

GEOGRAPHY AND BEYOND

Creating supportive spaces for a diversity of women within academia is an ongoing process that involves personal and political action at a variety of scales. This year’s special session of the no)BOUNDARIES conference looks to acknowledge the successes as well as the challenges faced by those striving to create a more supportive academic environment for all women.

We are soliciting papers for panel sessions on the themes of:

- Life in the Department: Departmental Climate; Mentoring; Access to Information; Student Organizations (e.g. Supporting Women in Geography)

- Life Beyond the Department: Publishing; Work/Life Balance; Career Track; Outreach; Networking


These are merely suggested topics; we welcome any and all contributions.

Balancing on the Academic Ladder will consist of workshops as well as panel sessions to encourage the generation and exchange of creative ideas and strategies. Send paper abstracts to noboundaries@psu.edu.


Submission deadline for abstracts is February 1, 2009


Sustainable Zoning and Development

Posted by Dave Smith On 1/06/2008 04:22:00 PM 0 comments

Jeff Thurston at Vector One has another great post speaking to one of his passions - sustainability.

He touches on the issues of infrastructure and zoning - and here, I wholly agree, we need to rethink our approaches to land use and infrastructure.

In antiquity, our approaches were geared toward communities, where people were able to work, live, buy, sell, trade, interact, worship, and essentially conduct all the activities they needed on convenient terms - typically one could traverse a small town on foot with ease, finding grocers, butchers, bakers, and any other needs handy. With the introduction of factories and mass production, along with mass transit, such as trolleys and buses, manufacturing and heavy industry was able to make an upsurge.

With the automobile, our definition of "convenience" began to shift, and our towns and cities became increasingly pedestrian-unfriendly. Add to this, the increasing pressures and consequences of the heavy industry and other uses which were less compatible with residential use, which ultimately led to segregation of land uses.

Ultimately, folks escaped from the cities, only to bring the cities with them, in the form of row after row of identical, cookie-cutter subdivision homes, spread over mile after mile of what had once been prime farmland.

Consequently, the pendulum has swung, from small, intimate community, to the scattered, impersonal, suburban sprawl of today. Perhaps the time has come for the pendulum to swing back - we have seen the rise of gasoline costs, and along with it, an increase in telecommuting and infrastructure alternatives.

The economic and cultural drivers are in place, however the regulatory and governance aspect still lags behind - with reforms to zoning and land use planning needed, along with different models for dealing with infrastructure relating to the "convenience factor"... Here is a place where I anticipate GIS having a definite and distinct role in demonstrating the cases and scenarios for future land use and development paradigms - and along with it, principles of land conservation and open space preservation.

Resources:


Cadastral or not?

Posted by Dave Smith On 12/10/2007 11:23:00 AM 7 comments

After hearing some recent trials and tribulations of a surveyor arguing a legal lot line adjustment with the county GIS department (same story repeated again and again all across the nation), it again underscores the issue of what is or isn't cadastral GIS.

In Pennsylvania, our State Law says,

“Practice of Land Surveying” means the practice of that branch of the profession of engineering which involves the location, relocation, establishment, reestablishment or retracement of any property line or boundary of any parcel of land or any road right-ofway, easement or alignment; the use of principles of land surveying, determination of the position of any monument or reference point which marks a property line boundary, or corner setting, resetting or replacing any such monument or individual point including the writing of deed descriptions; procuring or offering to procure land surveying work for himself or others; managing or conducting as managers, proprietors or agent any place of business from which land surveying work is solicited, performed, or practiced; the performance of the foregoing acts and services being prohibited to persons who are not granted certificates of registration under this act as a professional land surveyor unless exempt under other provisions of this act.
As such, what exactly does a tax map represent? It seems that many GIS departments hop back and forth between boxes, either arguing that it is not surveying, and only deals with a schematic showing taxation, but at the same time, argue issues of deeds and possession, enter their parcel boundaries using COGO, and so on.

Either it is, or it isn't. If it is indeed a representation of the cadastre - and after all, taxation is uniquely tied back to the parcels and their possession - then it needs to be properly treated as such.

If, on the other hand, it's not a representation of the cadastre, then perhaps it's in fact something which perhaps has no real meaning, merit or legal standing whatsoever.

If the former is the case, then it likely needs to be getting developed and maintained under the purview of a licensed professional land surveyor, per state law - if the latter is the case, then I believe the whole process needs to be re-evaluated.

I'll put this out there for debate, with the caveat that I did intend to stir the pot - I'm interested in getting others' earnest perspectives.

Just received this announcement from a colleague:



National Land Cover Database (NLCD 2001)
The U.S. Geological Survey, on behalf of the interagency Multi-Resolution Land Characteristics Consortium (MRLC), is pleased to announce the availability of NLCD 2001 products for the conterminous United States. These products are web enabled for download from the MRLC website at www.mrlc.gov. NLCD 2001 products include 21 classes of land cover, percent tree canopy and percent urban imperviousness at 30 m resolution derived from Landsat imagery. NLCD 2001 will support a wide variety of users, institutional sectors and local- to national-scale applications with this updated land-cover data. Alaska, Hawaii, and Puerto Rico will be completed by December of 2007, which will then represent the first compilation of nationwide land cover ever produced at 30-meter resolution.


Great news for a wide variety of applications - I was just looking at a watershed application, myself, where this data will fit quite nicely.

I did a quick check, it's not yet visible in the MRLC map viewer, however the data is available via FTP - visit the Multi-Resolution Land Characteristics site: http://www.mrlc.gov/




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