Sewerage Mapping

and

Information System

Sewer Maintenance Section

Facilities Management and Maintenance Division

Bureau of Sewerage, Tokyo Metropolitan Government

i

Table of Contents

1. Introduction・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・1

2. Background of the Sewer Mapping and Information System ( SEMIS )・・・・・・・・・・・・2

2.1 Development history・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・2

2.2 Structure of SEMIS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・3

3. SEMIS Functions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・4

3.1 Drawing Search・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・4

3.2 Display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・4

3.2.1 Display control・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・4

3.2.2 View switching・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・5

3.3 Attributes ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・5

3.4 Sewerage Functions・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・6

3.4.1 Upstream/downstream tracking ・・・・・・・・・・・・・・・・・・・・・・・・・・・6

3.5 Conditional Search・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・7

(1) Separate conditional search results by color・・・・・・・・・・・・・・・・・・・・・・・・7

(2) Separate conduit diagnosis results by color・・・・・・・・・・・・・・・・・・・・・・・・8

3.6 Copy to Clipboard・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・9

3.7 Printing and Output・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・10

3.7.1 Drawing printout and PDF file creation・・・・・・・・・・・・・・・・・・・・・・・・・10

3.7.2 SXF data output・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・11

3.8 Data Recycling of Sewerage Mapping Information・・・・・・・・・・・・・・・・・・・・・12

(1) Data recycling of CAD-based pipe design system・・・・・・・・・・・・・・・・・・・・・12

- 1 -

1 Introduction

Sewage works first began in Tokyo’s 23 municipalities with the installation of the Kanda Sewer in the late

19th century. Implementation of a full-scale sewage system began in the mid-1950s, and 100 percent

municipal coverage was achieved by the end of March 1995. By the end of March 2014, more than 16,000km

of distributed pipes were in place in the 23 municipalities, supporting urban living from below. Tokyo had been

managing its sewer information using hand drawings on Kent paper since 1931, but creating drawings this

way for the growing sewage system required a great deal of labor and time and made frequents updates

difficult. In 1985, the Tokyo Bureau of Sewerage pioneered the use of information technologies for sewage

management in Japan when it introduced SEMIS (Sewerage Mapping and Information System) to administer

the massive numbers of drawings accumulating from its growing sewage infrastructure. In 2000, SEMIS was

restructured to take advantages of developments in personal computer technologies, making it possible for

each bureau office to have its own dedicated computer for accessing SEMIS. In April 2009, the bureau

introduced TAIMS (Tokyo Advanced Information Management System), a SEMIS-based system that allows

required personnel to access all sewage pipe information.

Example of a public sewer drawing on Kent paper

図 1

- 2 -

2 Background of the Sewerage Mapping and Information System (SEMIS)

SEMIS is a geographic information system (GIS) that brings information from sewage facilities into a unified

database for management purposes. The database consists of configuration, attribute and image information.

Configuration information consists of facilities data and topographic data, attribute information consists of

more than 90 data categories such as pipe diameter, material, year of installation and land manager name,

and image information consists of finished drawings and structural drawings for specialized manholes.

A variety of output functions are available to manipulate this information, including configuration search, filing,

construction records, standard drawing release, aggregation and SXF data output (a CAD data exchange

standard). The configuration search function includes conditional display, upflow/downflow tracking, flow rate

measurement, vertical/horizontal view creation and extended area calculation, which has contributed to more

efficient planning and design. It is therefore a GIS that can aggregate and consolidate all kinds of information.

2.1 Development history

The following is the development timeline for SEMIS.

1980: Begin process of digitizing sewer, manhole and construction information data

1982: Begin development of Sewerage Mapping and Information System (SEMIS)

1985: SEMIS completed for midrange computer platform

1986: Full-scale implementation of SEMIS

2000: Implementation of new SEMIS platform for personal computers

2005: Implementation of Internet access for SEMIS

2006: Start of SEMIS SXF data capabilities for construction-site work.

2009: Start of Tokyo Advanced Information Management System (TAIMS) using SEMIS

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2.2 Structure of the Sewerage Mapping and Information System (SEMIS)

SEMIS consists of the TAIMS specialized information network for employees called and an

Internet-based sewage drawing perusal system.

　　

施設管理部

図面 図面・調書 図面検索

ﾌｧｲﾘﾝｸﾞ、集計など

ﾏｯﾋﾟﾝｸﾞDB

ﾌｧｲﾘﾝｸﾞDB

公共下水道台帳閲覧室

ﾌﾟﾛｯﾀ ﾌﾟﾘﾝﾀ PC ｻｰﾊﾞ

ホームページ用

下水道事務所

図面図面・調書ﾏｯﾋﾟﾝｸﾞDB

ﾌｧｲﾘﾝｸﾞDB

ﾌﾟﾛｯﾀﾌﾟﾘﾝﾀPCｻｰﾊﾞ

注）マッピング ： 下水道台帳情報（下水道施設図形情報、施設詳細情報）

ファイリング ： 工事完了図・特殊人孔構造図情報

ＴＡＩＭＳ ： 東京都高度情報化推進システム

TAIMS版SEMIS閲覧機

図面検索

ﾌｧｲﾘﾝｸﾞ、集計など図面・調書 図面

出張所、基幹施設再構築事務所

本庁各部ＴＡＩＭＳネットワーク

ＴＡＩＭＳネットワーク

インターネットデータセンタ

インターネット

インターネット閲覧

都庁第二本庁舎

ＡＤＳＬ回線

水再生センター等

TAIMS-PC

TAIMS-PC

TAIMS-PC

TAIMS-PCTAIMS版SEMIS

TAIMS版SEMIS TAIMS版SEMIS

PC ﾌﾟﾘﾝﾀ ﾌﾟﾛｯﾀ

図面検索,ﾌｧｲﾘﾝｸﾞなど

図面検索,ﾌｧｲﾘﾝｸﾞなど

図面検索,ﾌｧｲﾘﾝｸﾞなど

図面検索,ﾌｧｲﾘﾝｸﾞなど

図面検索

ﾌｧｲﾘﾝｸﾞ、集計など

インターネット配信サーバ

4台

Operation Maintenance and

Management Division

Drawings Drawings and records Drawing search, filing,

aggregation, etc.

Mapping database,

Filing database

Plotter Printer Server Plotter

Tokyo Metropolitan Government Bldg. No.2

Each Division in the Tokyo

Metropolitan Main

Government Bldg. network

Public Sewerage Ledger

Viewing Room

Viewing terminal ( website use )

TAIMS-version SEMIS

Drawing searches, filing, etc.

Sewerage Office

Internet Data Center

Internet delivery servers (4)

Internet

Viewing on Internet

ADSL line

Drawing searches, filing, etc.

Mapping DB

Filing DB

Drawing searches, filing,

aggregation, etc.

Drawings and

records

Drawings

Plotter Printer Server

network

TAIMS-version SEMIS

TAIMS-version SEMIS TAIMS-version SEMIS

Drawing searches, filing, etc. Drawing searches, filing, etc.

Drawing searches, filing,

aggregation, etc. Drawings and

records

Drawings

Printer Plotter

Water Reclamation Centers

Branch Offices, Core Facilities Reconstruction Office

* Mappong : Sewerage mapping and Information ( facility configurations and other facility details )

Filing : Final drawings, information on structural drawings for specialized manholes.

TAIMS : Tokyo Advanced Information Management System

Fig. 2

- 4 -

3 SEMIS Functions

The following examples show screen shots of typical SEMIS functions.

3.1 Drawing Search

This function can be used to search for objects with parameters such as address, sewerage

mapping number, affiliated sewerage facility and manhole number.

3.2 Display Switching between configurations and lead line views is easily done with the Display Control

function, accessed through the Switch View button on the toolbar.

3.2.1 Display control An example of how displays can be manipulated using the example of “ Grid / installed pipe

data. ”

Fig. 3

2

Fig. 4

- 5 -

3.2.2 View switching An example of view switching for Road Management Center drawings using the Switch View

button on the toolbar.

3.3 Attributes Clicking on the Confirm Attributes tab allows attribute details to be checked. The example below

shows functions associated with selecting a sewer pipe.

Fig. 6

Fig. 5

Project listing

Final drawing

Current state of conduit

Pipe information displayed in Excel

- 6 -

3.4 Sewerage Functions The Sewerage function button on the toolbar can be used for upstream / downstream tracking of

pipes, flow rate measurements, vertical / horizontal views, etc.

3.4.1 Upstream / downstream tracking An example of how the Upstream/Downstream, Tracking button on the toolbar can generate

an upstream tracking drawing.

Fig. 8

Fig. 7

Plotter printout

List of tracking pipe numbers output to Excel

Tracking results displayed in a PDF file

- 7 -

3.5 Conditional Search

By using the Search by Condition button on the toolbar and applying pre-registered information,

the system can separate out results by color.

(1) Separate conditional search results by color

The following example shows use of the Conditional Search function on the toolbar to carry out

a specified search and obtain color-coded results. After clicking on the Conditional Search

button, the conditional search function is activated via the appropriate tab. Conditions are set in

the dialog box and the display generates color-coded results according to the selected

specifications.

Fig. 10

Fig. 9

- 8 -

(2) Separate conduit diagnosis results by color

Conduit diagnosis results can be separated according to color by using the Conditional Search

function on the toolbar.

Fig. 11

- 9 -

3.6 Copy to Clipboard

An area selected on a drawing can be copied to the clipboard.

※ Metafile output is also available in addition to bitmap images.

Fig. 12

Example of output to Excel

Example of output to Word

- 10 -

3.7 Printing and Output

This function supports printing to laser and inkjet printers and plotters, PDF file creation and output of

SXF data for CAD use.

3.7.1 Drawing printout and PDF file creation

Output examples for a drawing printout and a PDF.

Fig. 13 Plotter Printout

- 11 -

3.7.2 SXF data output

An example of SXF data output for CAD.

Fig. 14

Attribute information (XML)

SXF version information

Configuration information (SFC/P21)

- 12 -

3.8 Data Recycling of Sewerage Mapping Information

In order to make practical use of existing sewage drawings data, the Tokyo Bureau of Sewerage

pioneered the use of input/output functions in Japan with SXF Version 3. As of April 2004, sewage

facilities information can be output to SXF for use in design and construction, and the finished

drawings are returned to the system in a loop that is termed “data recycling.”

(1) Data recycling of CAD-based pipe design system.

An example of existing mapping data being used in a CAD system for pipe design.

Fig. 15

Electronic surface view

Final drawing (system)

Final drawing (route details)