Importance of address ranges

Blog_Importance_of_address_ranges.jpg

As was described in the August 2009 article, a Village of Riverside
master address database was created in the Geographic Information System
(GIS). This database was generated from several sources including
water billing, permits, fire inspections, and business licenses. Each
address follows the United States Postal standard format and is
represented geographically by a point at the location of the addressed
structure or property.

Another standard used in GIS is an address range. Address ranges are
represented by line features usually along the centerline of a roadway
and store the sequence of addresses on the left and right side of the
line (traditionally odd versus even addresses or vice versa). These
ranges are designed to match the addressed buildings as well as provide
for an estimate location of theoretical addresses between actual ones.

An address range can assist in address numbering in cases where
undeveloped land is subdivided and addresses need to be created. But
most often this resource is used for emergency support in which services
are dispatched to a location that is provided by an individual making
an emergency call. Emergency response could be delayed if dispatch
relied only on actual addresses because there can be miscommunication
between the call center personnel and those making the call. If the
address provided does not match an actual address the address range can
be referenced and provide the estimated location of that emergency to
ensure a timely response.

The standard that has been applied in Riverside is to break these
address lines at all intersections. This provides for yet another
locating option – to search for an intersection of two roadways rather
than an address. A block, intersection to intersection, ideally
consists of one hundred addresses but this type of address ranging
usually exists only in grid structured city centers. Therefore address
ranges are very useful for areas that do not follow a grid.

Locating by address, address range, or intersection introduces many
options by which to search for a place and each has their use or support
for one another. A user of this information simply needs to understand
how they benefit from each of these tools and apply them.

Importance of address ranges

Blog_Importance_of_address_ranges.jpg

As was described in the August 2009 article, a Village of Riverside
master address database was created in the Geographic Information System
(GIS). This database was generated from several sources including
water billing, permits, fire inspections, and business licenses. Each
address follows the United States Postal standard format and is
represented geographically by a point at the location of the addressed
structure or property.

Another standard used in GIS is an address range. Address ranges are
represented by line features usually along the centerline of a roadway
and store the sequence of addresses on the left and right side of the
line (traditionally odd versus even addresses or vice versa). These
ranges are designed to match the addressed buildings as well as provide
for an estimate location of theoretical addresses between actual ones.

An address range can assist in address numbering in cases where
undeveloped land is subdivided and addresses need to be created. But
most often this resource is used for emergency support in which services
are dispatched to a location that is provided by an individual making
an emergency call. Emergency response could be delayed if dispatch
relied only on actual addresses because there can be miscommunication
between the call center personnel and those making the call. If the
address provided does not match an actual address the address range can
be referenced and provide the estimated location of that emergency to
ensure a timely response.

The standard that has been applied in Riverside is to break these
address lines at all intersections. This provides for yet another
locating option – to search for an intersection of two roadways rather
than an address. A block, intersection to intersection, ideally
consists of one hundred addresses but this type of address ranging
usually exists only in grid structured city centers. Therefore address
ranges are very useful for areas that do not follow a grid.

Locating by address, address range, or intersection introduces many
options by which to search for a place and each has their use or support
for one another. A user of this information simply needs to understand
how they benefit from each of these tools and apply them.

Centralizing address updating with GIS

Blog_Centralizing_address_updating_with_GIS.jpg

Addresses play an important role in the daily activities of Village
of Riverside staff whether it is for water billing information, permits,
or locating a resident in case of an emergency. In addition, a physical
address can serve as a link for answering such questions as what school
district do I belong to or what zoning district am I in? However,
obtaining this information for a specific address often requires
searching through multiple spreadsheets, databases, and paper documents.

In order to create a centralized location for the address information
in Riverside a master address database was created in the Geographic
Information System (GIS). This database was generated from several
sources including water billing, permits, fire inspections, and business
licenses. It was necessary to utilize all address resources to ensure
the existing databases and spreadsheets could relate to this new address
resource. Because these independent sources were each developed with a
specific focus, which limited them from including all addresses within
the community, it is also important to obtain all address records from
these independents sources. For example, one address database may have
only included business addresses, another contained residential
addresses, and a third identified suite and apartment information.

Each address in the master database follows the United States Postal
standard with a prefix direction, address number, street, street type
(such as boulevard or avenue) and a suffix direction. This information
is captured in separate fields that allows for combining all of those
values or just a select few. An example is 1190 Arlington Heights or
1190 S Arlington Heights Rd.

The GIS allows for all of the addresses in the database to be
represented by a point feature referencing an x and y coordinate that
places it in a known location on the earth. This point is linked to a
table containing additional information about that particular address
including a Property Identification Number or PIN number and assessor
information. The address point is typically placed in the center of the
corresponding parcel, but can be placed at a more descriptive location
such as the main entrance by using aerial imagery and building footprint
information. Moreover, this address is stored as a primary address
point. Often times additional buildings and parking lots that have the
same address as the main building are located on another parcel. These
structures are given a secondary address point to differentiate them
from the primary address location.

By design, the GIS allows for quick and simple retrieval of data at a
particular location. An address point can be identified and overlaid
with additional data layers including utilities, subdivisions, school
districts, and a road network to quickly determine the location of the
nearest fire hydrant to a property or the number of homes within a
particular school district. This eliminates the need for village staff
to check multiple sources of information which can save time, money, and
in the case of emergency services, lives. Overall, it is safe to say
that the enhancements a village receives by having an accurate address
database will become known as the GIS programs continue to evolve.

Centralizing address updating with GIS

Blog_Centralizing_address_updating_with_GIS.jpg

Addresses play an important role in the daily activities of Village
of Riverside staff whether it is for water billing information, permits,
or locating a resident in case of an emergency. In addition, a physical
address can serve as a link for answering such questions as what school
district do I belong to or what zoning district am I in? However,
obtaining this information for a specific address often requires
searching through multiple spreadsheets, databases, and paper documents.

In order to create a centralized location for the address information
in Riverside a master address database was created in the Geographic
Information System (GIS). This database was generated from several
sources including water billing, permits, fire inspections, and business
licenses. It was necessary to utilize all address resources to ensure
the existing databases and spreadsheets could relate to this new address
resource. Because these independent sources were each developed with a
specific focus, which limited them from including all addresses within
the community, it is also important to obtain all address records from
these independents sources. For example, one address database may have
only included business addresses, another contained residential
addresses, and a third identified suite and apartment information.

Each address in the master database follows the United States Postal
standard with a prefix direction, address number, street, street type
(such as boulevard or avenue) and a suffix direction. This information
is captured in separate fields that allows for combining all of those
values or just a select few. An example is 1190 Arlington Heights or
1190 S Arlington Heights Rd.

The GIS allows for all of the addresses in the database to be
represented by a point feature referencing an x and y coordinate that
places it in a known location on the earth. This point is linked to a
table containing additional information about that particular address
including a Property Identification Number or PIN number and assessor
information. The address point is typically placed in the center of the
corresponding parcel, but can be placed at a more descriptive location
such as the main entrance by using aerial imagery and building footprint
information. Moreover, this address is stored as a primary address
point. Often times additional buildings and parking lots that have the
same address as the main building are located on another parcel. These
structures are given a secondary address point to differentiate them
from the primary address location.

By design, the GIS allows for quick and simple retrieval of data at a
particular location. An address point can be identified and overlaid
with additional data layers including utilities, subdivisions, school
districts, and a road network to quickly determine the location of the
nearest fire hydrant to a property or the number of homes within a
particular school district. This eliminates the need for village staff
to check multiple sources of information which can save time, money, and
in the case of emergency services, lives. Overall, it is safe to say
that the enhancements a village receives by having an accurate address
database will become known as the GIS programs continue to evolve.

Using GIS to better understand and analyze parking dynamics

​Riverside has a central business district that includes a train
station for the Burlington Northern and Santa Fe (BNSF) Railway. The
railway services communities from Aurora to Chicago and is convienent
for the residents of Riverside and adjacent cities and villages such as
Lyons and North Riverside.

Like many communities in the Chicago Metropolitan area, having a
relatively dense population near this type of public transportation
creates an interesting demand and use of parking facilities.
Individuals travel to the village center to work, take the train
elsewhere,and or to take advantage of the local amenities. Realizing the
dynamics of parking needs desired by those visitors and residents
living in the town center is necessary to promote the village and these
services being provided.

The Village of Riverside has used its Geographic Information System
(GIS) resources to gain a unique perspective of the parking status in
relation to licenses and parking permits on record. Mapping active
licenses in the community allowed village staff to see where vehicles
are owned and where concentrations demand more parking. The parking
permit map allowed for visualization of the concentration of vehicles as
well as the the type of permits being used. Furthermore, it suggests
lengths of time or periods of the day those parking spaces are being
utilized. Additionally, an analysis of the disparty between these two
sets of information could possibly identify some violations taking place
such as residents that have a license but are not obtaining a permit.

The next step in the parking evaluation will include a parking model
where parking lots, spaces, and restrictions will be added to the GIS.
This will assist in managing the parking facilities and regulations as
well as providing insight that may highlight potential for additional
parking areas and ways to make the current areas more efficient.

Using GIS to better understand and analyze parking dynamics

​Riverside has a central business district that includes a train
station for the Burlington Northern and Santa Fe (BNSF) Railway. The
railway services communities from Aurora to Chicago and is convienent
for the residents of Riverside and adjacent cities and villages such as
Lyons and North Riverside.

Like many communities in the Chicago Metropolitan area, having a
relatively dense population near this type of public transportation
creates an interesting demand and use of parking facilities.
Individuals travel to the village center to work, take the train
elsewhere,and or to take advantage of the local amenities. Realizing the
dynamics of parking needs desired by those visitors and residents
living in the town center is necessary to promote the village and these
services being provided.

The Village of Riverside has used its Geographic Information System
(GIS) resources to gain a unique perspective of the parking status in
relation to licenses and parking permits on record. Mapping active
licenses in the community allowed village staff to see where vehicles
are owned and where concentrations demand more parking. The parking
permit map allowed for visualization of the concentration of vehicles as
well as the the type of permits being used. Furthermore, it suggests
lengths of time or periods of the day those parking spaces are being
utilized. Additionally, an analysis of the disparty between these two
sets of information could possibly identify some violations taking place
such as residents that have a license but are not obtaining a permit.

The next step in the parking evaluation will include a parking model
where parking lots, spaces, and restrictions will be added to the GIS.
This will assist in managing the parking facilities and regulations as
well as providing insight that may highlight potential for additional
parking areas and ways to make the current areas more efficient.

Following flooding

Blog_Following_flooding.jpg

Being situated along a river has many advantages, but can also create
many issues that have a direct impact on the residents adjacent to
these natural features. Riverside has most of its southern boundary
defined by the Des Plaines River and there are significant natural areas
throughout the community that surround the river which provide for
activities such as fishing and scenic walking. These landscapes usually
act as a buffer from flooding that can occur during major rain events,
but do not always absorb the impact of these events.

The Geographic Information System (GIS) provides the community a
resource to consume Federal Emergency Management Agency (FEMA) flood
information. This data is updated every year and helps determine
insurance rates and flood hazards in developed areas. The FEMA data can
be combined with property and other geographic information and features
in the GIS that allows for recognition of trends and provides a
superior decision making resource when compared to previous methods.

This information is currently being provided to village staff as a
map image and through a mapping application called MapOffice™ Advanced.
MapOffice™ Advanced provides an interactive resource where staff can
quickly view properties, addresses, roadways, waterways, and FEMA flood
zones. The map image provides similar viewing capability, but has also
incorporated other flood and drainage information that has been captured
in the GIS such as the extent of the flooding from the September 2008
storm event and yard drainage issues that have been reported throughout
the community.

Other geographic analysis is being considered to further impower
village staff and support their efforts to mitigate these events and
issues. In the meantime, combining and overlaying this various but
related information will continue to provide a valuable resource for the
village.

Following flooding

Blog_Following_flooding.jpg

Being situated along a river has many advantages, but can also create
many issues that have a direct impact on the residents adjacent to
these natural features. Riverside has most of its southern boundary
defined by the Des Plaines River and there are significant natural areas
throughout the community that surround the river which provide for
activities such as fishing and scenic walking. These landscapes usually
act as a buffer from flooding that can occur during major rain events,
but do not always absorb the impact of these events.

The Geographic Information System (GIS) provides the community a
resource to consume Federal Emergency Management Agency (FEMA) flood
information. This data is updated every year and helps determine
insurance rates and flood hazards in developed areas. The FEMA data can
be combined with property and other geographic information and features
in the GIS that allows for recognition of trends and provides a
superior decision making resource when compared to previous methods.

This information is currently being provided to village staff as a
map image and through a mapping application called MapOffice™ Advanced.
MapOffice™ Advanced provides an interactive resource where staff can
quickly view properties, addresses, roadways, waterways, and FEMA flood
zones. The map image provides similar viewing capability, but has also
incorporated other flood and drainage information that has been captured
in the GIS such as the extent of the flooding from the September 2008
storm event and yard drainage issues that have been reported throughout
the community.

Other geographic analysis is being considered to further impower
village staff and support their efforts to mitigate these events and
issues. In the meantime, combining and overlaying this various but
related information will continue to provide a valuable resource for the
village.

Community zoning and street maps

Blog_Community_zoning_street_maps.jpg

One of the latest Geographic Information System (GIS) developments in
Riverside has been the creation of a community Zoning Map and Street
Map. It was requested that the existing village Zoning Map be created
within the GIS Department as a color map depicting the zoning boundaries
as well as the proper zoning classification. While the zonig map is
driven by the local community the street map is more of a GIS Consortium
(GISC) standard map product that is suggested as soon as a community
joins the consortium. The street map provides a good basis for future
mapping products in that much of the fundamental community information
is present. These maps have been completed by incorporating many layers
of information that have been formulated since the inception of the
program.

As mentioned previously, the zoning map requires the creation of
zoning boundaries with their respective zoning types displayed according
to a proper color scheme. The former zoning map was referenced to be
sure that all of the previous map elements were incorporated such as the
district requirements, revision list, legend and effective date. The
street map incorporates important places, recreation areas and trails
throughout the community. A street name index was also created which
can be very useful for an individual who is not familiar with the
village as it provides a gird number of where to find a given street in
the map.

Other than the layout of the map itself, the data used in both maps
helps to give them a consistant look and includes the street names,
roadways, neighboring communities and address grid. Rather than having
these maps made at separate times during the fiscal year these two maps
are created at a similar time making it easier to consider what message
each map communicates as well as the similarities that would persist
between the maps.

There have been a number of map reviews resulting in the final
products. These maps are currently being distributed throughout the
village and can be provided as either a hard copy that is printed at
almost any size desired, depending on printing resources, or
electronically in an image format such as a PDF that is viewable with
Adobe Reader. All data layers within the map have been stored in
geographic databases that allow for continued use, modification and
additions. The map layout has also been saved so that it is available
for future map production which allows for the underlying data features
within the existing map to be updated while the layout remains the same.

In conclusion, it is important to note that wondering where you are
in town or what zoning district a property falls under are questions
that are asked everyday. Moreover, by having the essential tools such
as accurate maps to answer these questions the efficiency of the village
staff’s daily workflow can be enhanced greatly.

Tree inventory

A recent addition to the Village of Riverside has been the Geographic
Information System (GIS) services. Although GIS is being used in the
village to inventory multiple data items the tree inventory has gained
popularity. A few years ago the village used Davey Consultants to
locate the trees in the village parks using GPS equipment. They also
identified trees existing in the parkways and associated that
information to the nearest address. This information was incorporated
into the GIS by downloading the GPS data which was already in a
geographic data format because of the original collection tools that
were utilized. The tabular data was then matched to an address in the
GIS system and from there it was incorporated into a geographic database
with location context.

Village Forester, Mike Collins, had also maintained records of new
tree plantings and removals since the initial data collection. These
records were considered as valuable information to be updated to the
inventory as well as many other attributes such as tree widths, trimming
schedules and overall tree condition. Moreover, the versatility of the
database was made so that it can be expanded at any time to capture
more related information that may assist in making more informative
decisions when needed. The GIS was recently leveraged to determine the
overall distribution of trees in the community with a specialized
interest in clusters of specific tree types, particularly the Ash and
Elm tree species that have potential to be affected by invasive diseases
such as the Emerald Ash Borer or Dutch Elm Disease. This kind of
geographic analysis allows for a much faster response to reports of
these invasive species and targets the efforts necessary to contain
their spread not only within the Village of Riverside, but from
traversing to other neighboring communities.

Specific interest was given to Ash trees within the community and a
series of maps were created to identify where these trees were located
in Riverside. Together the maps were then used to form an index of the
entire community where each page displayed information at a legible
extent. Thus communicating the scope of the analysis in a more
effective manner by combining the Ash tree data in both the parks and
parkways. Lastly, the Public Works Assistant Director, Nathan Thiel,
posted these maps on the village website making it available to all
village residents. Its format allows a resident to choose an area on a
village map and quickly analyze the distribution of Ash Trees in a
specific area. The link to this resource is available at
http://riverside.il.us/ under the Village Quick Links and is titled
“Public Ash Tree Inventory.”​